With just nine days to go until the start of Euro 2020, preparations are hotting up.

There are systems to train, friendlies to navigate and injuries to heal – hopefully – for the 24 teams involved before the delayed competition begins on June 11.

That year-long wait for the finals has helped some, with certain players able to recover form and fitness after looking likely to miss out entirely had the tournament gone ahead last year.

However, there are others for whom the rescheduling has come as a bit of a blow.

Using Opta data, Stats Perform examines some of the major contenders for the trophy and why the postponement could prove a particular problem...

Belgium

Roberto Martinez has been left with a major headache around three of his biggest names.

Eden Hazard may have hoped the extra year would help him recover peak form with Real Madrid but, if anything, matters have become worse.

He was limited to just 21 Madrid appearances in 2020-21, scoring four goals and providing two assists from a mere nine chances created, as fitness problems and fan frustrations persisted.

There are also worries now around Kevin De Bruyne, whose magnificent season for Manchester City ended with broken facial bones in a losing Champions League final, while Axel Witsel has not played since January 9 due to an Achilles injury.

Croatia

Ivan Rakitic caused a shock last September when he announced his retirement from international football, having been all set to play at the Euros had they gone ahead as planned.

While the 2018 World Cup finalists still have Luka Modric at the heart of their midfield, the Real Madrid man will be 36 this year and has come off a hectic season in which he played 48 games.

Another veteran, Ivan Perisic, last played a full match for Inter in February and Mateo Kovacic missed seven of Chelsea's final nine games of the season through injury.

England

England have some concern around Raheem Sterling, who has scored one league goal since February and fell out of favour at Manchester City. There are also problems with Marcus Rashford, who has been managing an ankle issue for several weeks and only has four league goals to his name since the turn of the year.

In midfield, Jordan Henderson has not played since undergoing groin surgery in February, Jack Grealish missed three months of action for Aston Villa and Harry Maguire's ankle ligament damage has left him battling to be fit enough for the start of the group stage.

And what of Trent Alexander-Arnold? The Liverpool right-back, sensational in 2019-20, was left out of the World Cup qualifiers in March after an inconsistent season and is hardly guaranteed a starting spot under Gareth Southgate.

Netherlands

The Netherlands will have to make do without Virgil van Dijk. The Liverpool star was integral to the Oranje's run to the inaugural Nations League Finals and seemed destined to head into the tournament as Europe's best centre-back. As it is, he will watch from afar, having failed to recover from the knee injury he sustained in October.

Frank de Boer became the first Netherlands head coach to fail to win any of his first four fixtures, and though he managed to correct that dismal form, his record since leaving Ajax does not exactly bode well heading into a major tournament.

There is also the issue of Donny van de Beek, who has started just four Premier League games for Manchester United and finished his first season with the Red Devils as an unused substitute as they lost on penalties to Villarreal in the Europa League final.

Spain

Ansu Fati is the big new hope for Barcelona and Spain, but injury ended the winger's season prematurely and he has not recovered in time to make Luis Enrique's 24-man squad – a selection that does not feature Sergio Ramos or any of his Real Madrid team-mates.

Ramos has only played only once – in a Champions League defeat to Chelsea – since March, and it was felt he needed time to recover away from the international stage.

It also seemed as though Adama Traore would prove a valuable impact player in the Spain attack, but the Wolves forward managed only two goals and two assists in 37 Premier League games in 2020-21.

It has been a long time coming but Euro 2020 finally gets under way on June 11.

A year later than scheduled due to the coronavirus pandemic, 24 teams will contest a tournament that will be staged in 11 cities.

Italy and Turkey do battle in the first match at the Stadio Olimpico in Rome, with the final staged at Wembley exactly a month later.

Holders Portugal face strong competition for their crown from the likes of world champions France, Belgium, England and Germany.

Stats Perform picks out some of the standout fixtures from the six groups in a European Championship that promises to be well worth the wait. 

Sunday June 13 - England v Croatia: Group D, Wembley (15:00 - all kick-offs shown are Central European Time)

Croatia came from behind to reach their first World Cup final with a 2-1 victory over England after extra time in Moscow three years ago.

Mario Mandzukic's goal proved to be decisive and England will be out for revenge in the first Group D contest.

The two nations have only met once at a European Championship and it was England who came out on top, Wayne Rooney scoring twice in a 4-2 group victory in Lisbon back in 2004. 

England have never won their first match at the Euros, while Croatia have not lost any of their last three opening fixtures in the tournament.

Tuesday June 15 - France v Germany: Group F, Allianz Arena (21:00)

Germany and France will meet for the first time in the group stage of either a European Championship or World Cup in Munich.

Joachim Low, who will end his reign as Germany head coach after the tournament, has suffered four defeats at the hands of France during his tenure, winning two and also drawing twice. 

Antoine Griezmann scored both goals in a 2-0 semi-final victory for Les Bleus over Germany in the 2016 Euros.

The world champions are unbeaten in five games against Germany (W3 D2), with the last win for Low's side coming when Mats Hummels scored the only goal in a 2014 World Cup quarter-final in Rio de Janeiro.

Friday June 18 - England v Scotland: Group D, Wembley (21:00)

England and Scotland will come to a standstill when the fierce rivals do battle in their second group game.

Scotland face Czech Republic before a highly-charged clash with their neighbours from south of the border 25 years after they met at Wembley in a dramatic Euro 96 group match.

Paul Gascoigne scored a stunning solo goal in a 2-0 victory for Terry Venables' side on that occasion, England's mercurial midfielder leaving Scotland shattered soon after Gary McAllister's penalty was saved by David Seaman.

England are unbeaten in the past four games against their fellow Brits, but needed a stoppage-time goal from Harry Kane to salvage a 2-2 draw the last time they met at Hampden Park in a World Cup qualifier four years ago.

Saturday June 19 - Portugal v Germany: Group F, Allianz Arena (18:00)

Germany will have home advantage in all three of their group games and they may have to be at their very best to beat Portugal in Munich.

Cristiano Ronaldo will get yet another opportunity to show he is the man for the big occasion. The Portugal captain has scored nine goals in 21 European Championship games, also providing five assists in the tournament.

History does not bode well for the defending champions, though, as Germany have beaten them four times in a row since Sergio Conceicao scored a hat-trick in a 3-0 win at Euro 2000.

Portugal may be haunted by the return of Thomas Muller, who helped himself to a treble when they last met in a 4-0 rout for Low's side at the 2014 World Cup in Brazil.

Wednesday June 23 - Portugal v France: Group F, Puskas Arena (21:00)

It will come as no surprise that the final match to catch the eye in the group stage is what could be a crucial tussle in Budapest.

While Germany face Hungary in Munich, France and Portugal will lock horns on the last day of group games.

Les Bleus had won all three competitive games against Portugal before they suffered the agony of a defeat in the 2016 European Championship final, which was settled by substitute Eder in extra time.

France have won 18 out of 25 meetings between the two nations, with N'Golo Kante scoring in a 1-0 victory in their last encounter in the Nations League just over six months ago.

The international break might bring respite from the packed club calendar, but with Qatar 2022 now just 20 months away, top players have little chance for rest.

Still, the start of the European World Cup qualifiers brings an opportunity for the new names on the international scene to impress, particularly with more established stars unlikely to be involved in every minute of matches over these two weeks.

Several of the continent's top teams have offered first-time call-ups to those enjoying fine form and, while some were anticipated, others have left even the players themselves surprised.

We have picked through a selection of the new faces to look out for, with a sprinkling of Opta data to highlight why they deserve a chance to impress for their country.

Belgium: Orel Mangala and Albert Sambi Lokonga

Stuttgart's Orel Mangala has been linked with Arsenal and RB Leipzig due to his performances for Stuttgart this season. Only three midfielders have regained possession more often in the Bundesliga than the 23-year-old (166).

Also hoping to make his senior Belgium debut at the heart of midfield is Albert Sambi Lokonga, who assumed the captain's armband at Anderlecht less than a month after turning 21.

Lokonga, who could get a chance in place of the injured Axel Witsel, has regained possession 35 more times than any team-mate this season (157) and is also fourth for chances created (22).

Croatia: Kristijan Lovric

With Ante Rebic and Bruno Petkovic injured, the coming matches could offer a real chance to impress for Kristijan Lovric.

The HNK Gorica star is second in the top scorer standings in Croatia's top flight, with 15 goals in 24 appearances. With four assists also to his name, Lovric is behind only Tottenham's Europa League slayer Mislav Orsic and Ramon Mierez (both on 20) for direct goal involvements this season.

It's a seriously impressive return for the 25-year-old, particularly as he plays predominantly wide on the left of the Gorica attack.

England: Ollie Watkins

West Brom goalkeeper Sam Johnstone may get the chance to win a first senior England cap, but a man almost certain to be given a chance in attack is Ollie Watkins.

The Aston Villa forward became the 10th Premier League player to score a hat-trick against Liverpool, and the first in a decade, in October's extraordinary 7-2 win over the reigning champions.

He has 10 in the top flight this term, while only captain Jack Grealish (17) has had more direct goal involvements than Watkins (15) in all competitions for Villa this season. Not bad for a man who was playing in England's sixth tier just six years ago.

Germany: Florian Wirtz and Jamal Musiala

Rising Bayern Munich star Jamal Musiala was expected to be named in Joachim Low's squad after he pledged his international future to Germany rather than England.

The 18-year-old, who only signed his first professional contract this month, is Bayern's youngest ever Champions League goalscorer and has already played 18 times in the Bundesliga this season.

Bayer Leverkusen's Florian Wirtz has also earned the right to shine on the senior stage. He is one of just two players under the age of 20 to be directly involved in at least eight goals across the top-five European leagues this season.

Italy: Rafael Toloi and Matteo Ricci

Brazilian-born Rafael Toloi has made it to the age of 30 without a senior international appearance, but his performances for Gian Piero Gasperini's outstanding Atalanta side made him hard to overlook.

Toloi averages seven possession regains per match for Atalanta this season and is comfortable when using the ball, completing 493 passes in the opposition half, the most of any Atalanta defender barring Berat Djimsiti.

Spezia midfielder Matteo Ricci, meanwhile, boasts 19 chances created in Serie A this season as well as 151 times winning back the ball, by far the highest tally for his team.

Netherlands: Jeremiah St Juste

Jeremiah St Juste has impressed at the back for Mainz this season, despite their involvement in a tense battle to avoid the drop.

There are only five Bundesliga defenders to win more tackles and duels combined than the 24-year-old this season (he has managed 165).

Previously a full-back with Feyenoord, St Juste brings a vital commodity to modern central defending: speed. Last season, he clocked a sprint of 22.1 miles per hour, bettered only at the time by Bayern winger Kingsley Coman.

Poland: Kacper Kozlowski

A relative unknown outside Poland, even Kacper Kozlowski himself was shocked to be called up to Paulo Sousa's squad this month.

Clearly, though, he has caught the eye for some all-action displays in the top flight for Pogon Szczecin. The 17-year-old averages 8.3 duels won and 17 passes ending in the final third per 90 minutes, each the most of any teenage midfielder in the competition.

Kozlowski, who is also renowned for a fierce long-range shot, has been linked with some of the world's biggest clubs since making his senior debut at just 15, with Manchester United said to be among them.

Portugal: Joao Palhinha and Nuno Mendes

Linked with Manchester City (among others), Sporting CP full-back Nuno Mendes has been described as the standout young talent in Portugal's top flight.

Only Wilson Manafa (49) has completed more dribbles among defenders this season than Mendes (29), who has played in all but four of the unbeaten leaders' league matches.

The 18-year-old is joined in the Portugal squad by team-mate Joao Palhinha, a robust midfielder who has won 208 duels in the Primeira Liga in 2020-21 – no player in his position has won more.

Spain: Bryan Gil and Pedri

Pedri has been a revelation for Barcelona in his first season at Camp Nou, establishing himself as a key part of Ronald Koeman's midfield despite only turning 18 last November.

He has played 42 times already in 2020-21, the most of anyone at the club, and became the youngest player to record 100 touches in a single LaLiga game for at least 15 years against Osasuna this month.

Bryan Gil, meanwhile, has been thriving on loan at Eibar from Sevilla and in January became the second player born this century to score twice in the same LaLiga match, following in the footsteps of Ansu Fati.