Returning substitute Mauro Icardi gave Paris Saint-Germain a remarkable 3-2 win at home to Saint-Etienne on Sunday to significantly boost the champions' title hopes.

A perplexing encounter was goalless until the 77th minute when Denis Bouanga had Saint-Etienne in front and PSG, beaten in their previous three home Ligue 1 games, facing defeat again.

Kylian Mbappe levelled just 84 seconds later, though, and then won and converted a penalty to seemingly win the match and close to within a point of leaders Lille, held by Montpellier on Friday.

Yet that was far from the end of the drama, with an awful error from stand-in goalkeeper Sergio Rico gifting Romain Hamouma a 92nd-minute equaliser.

Saint-Etienne had just three more minutes to see out to protect a point but allowed Icardi, back after a month out with a thigh strain, to reach Angel Di Maria's cross and nod in to spark jubilant celebrations.

Former France international Yohan Cabaye has announced his retirement at the age of 35.

The midfielder had not made a competitive appearance since starting for Saint-Etienne in a defeat to Lyon on March 1, 2020.

Cabaye posted on Twitter: "It is with great emotion that after more than 17 years of passionate love for football, with emotions greater than any other, memories that will remain forever and unforgettable human and sporting encounters, I announce the end of my professional football career.

"If this decision may seem obvious, logical and inevitable to some, having spent 35 years in the world of football, it remains very difficult to take and to accept because my love for football is immense."

Cabaye debuted with Lille in 2005 and won a Ligue 1 and Coupe de France double in his final season with the club in 2010-11.

His performances over his final two campaigns with Lille, in which he scored 18 goals, provided 18 assists and created 140 chances across 90 games in all competitions, earned international recognition and a move to the Premier League with Newcastle United.

Cabaye quickly found his feet in England, scoring five goals and delivering six assists in his debut season as Newcastle fell just short of Champions League qualification.

His form attracted the attention of Arsenal, but Cabaye failed to force through a move in August 2013 and instead enjoyed one of the most productive spells of his career as he scored seven times and laid on a pair of assists in 20 games before departing for Paris Saint-Germain in January 2014.

Two further Ligue 1 triumphs followed, along with success in the Coupe de France and twice in the Coupe de la Ligue, but he failed to establish himself as a regular starter in Paris.

Just 30 of his 57 PSG appearances came from the start and he soon left for Crystal Palace, spending a further three years back in the Premier League before ending his career with Al-Nasr and finally Saint-Etienne.

Cabaye played for his country on 48 occasions, scoring four times.

His first international goal came against Ukraine at Euro 2012 and he was a regular again at the World Cup two years later. France's home European Championship in 2016, where they reached the final, saw Cabaye appear only twice and once as a starter.

Pierre-Emerick Aubameyang's double in Arsenal's first-half dismantling of Leeds United on Sunday took the Gunners forward onto 200 goals in Europe's "top five" leagues, before the star striker then rounded off a first Premier League hat-trick.

Aubameyang, making his first league start since January 18 following a leave of absence to care for his ill mother, marked his return to Arsenal's line-up in style at Emirates Stadium.

The 31-year-old opened the scoring in the 13th minute with a low shot which had the power to beat Illan Meslier, whose clumsy challenge on Bukayo Saka then gifted Aubameyang the chance to make it 2-0 from the spot.

Having sent Meslier the wrong way, Aubameyang brought up his 200th goal in Europe's 'top five' leagues, in what was his 369th appearance – he is the ninth player to reach the landmark in those divisions.

It was his 61st Arsenal goal, which is 37 shy of the total he managed during his time with Borussia Dortmund (98).

Aubameyang's first goal in Ligue 1 came for Lille in December 2009, before he then went on to have spells at Monaco, Saint-Etienne in France prior to leaving for Dortmund in 2013 and eventually joining the Gunners three years ago.

It was also the first time Aubameyang has scored in consecutive starts in the Premier League within a single season since last February, when he did so against Newcastle United and Everton, and the first time he has scored at least twice in successive starts in the English top flight.

Hector Bellerin's well-crafted goal made it 3-0 to Arsenal on the stroke of half-time – the Gunners scoring three first-half goals in a Premier League game for only the second time under Mikel Arteta, having previously done so in July 2020 against Watford.

Aubameyang headed in from Emile Smith Rowe's cross-shot just after the break to complete his maiden Premier League hat-trick.

AUBAMEYANG'S 'TOP FIVE' LEAGUE GOALS – A BREAKDOWN

Lille (2009-10) – 14 appearances, two goals.

Monaco (2010-11) – 19 appearances, two goals.

Saint-Etienne (2010-13) – 87 appearances, 37 goals.

Borussia Dortmund (2013-18) – 144 appearances, 98 goals.

Arsenal (2018-21) – 105 appearances, 62 goals.

Paris Saint-Germain will visit either Guingamp or Caen when they begin their Coupe de France defence in the round of 64.

PSG won the competition last season as former head coach Thomas Tuchel masterminded a treble triumph, beating Saint-Etienne 1-0 in the final.

That successful campaign started away to sixth-tier Linas-Montlhery and Mauricio Pochettino's PSG will be on the road again after being drawn against Guingamp or Caen.

The Ligue 2 sides are set to face one another on January 20 for the right to host the French champions in February.

PSG have won the trophy a record 13 times, including five of the past six editions.

Saint-Etienne are also away - to Nancy or Sochaux - but Ligue 1 leaders Lyon will welcome Chateauroux or Ajaccio to the Groupama Stadium.

Marseille will visit Troyes or Auxerre, while Monaco are heading for Clermont or Grenoble.

Lille face Ligue 1 opposition in the form of struggling Dijon, and fourth visit seventh as Rennes go to Angers.

Mauricio Pochettino was satisfied with the effort put in by his Paris Saint-Germain team against Saint-Etienne, but knows there are lots of improvements to make.

PSG laboured to a 1-1 draw in Pochettino's opening game in charge, with the former Tottenham boss having replaced Thomas Tuchel.

The Ligue 1 champions moved up to second thanks to Lille's defeat to Angers, but are three points behind leaders Lyon.

Saint-Etienne capitalised on Idrissa Gueye's mistake to take the lead, but Moise Kean's eighth league goal of the season cancelled out Romain Hamouma's opener.

Denis Bouanga hit the crossbar for Saint-Etienne after the break, while Kean snatched at a good chance and Angel Di Maria forced Jessy Moulin into action with what was PSG's only shot on target in the second half as the spoils were shared on Wednesday.

"I am happy with the efforts of the players," Pochettino told Telefoot. "We've been trying since our first day to set up different concepts. 

"I'm happy with their efforts, their attitude. It's only the beginning. They have to adapt to us [the staff] and we have to adapt to them. There is work to be done to get to know each other better.

"We have to improve in several situations, especially with the ball, but it was difficult because the preparation has was very short.

"I am disappointed, because we are PSG and we want to win. But we didn't have a lot of time to prepare for the match.

"We still have a lot of things to improve, to develop. This is not the result that we wanted."

Paris Saint-Germain failed to get off to a winning start under Mauricio Pochettino as they were held to a 1-1 draw by Saint-Etienne in Ligue 1.

Thomas Tuchel oversaw a 4-0 defeat of Strasbourg in PSG's final game of 2020, although it was not enough for the German to keep his job as the defending champions sat third.

And Pochettino was unable to mastermind a victory to kickstart his reign as a rather lethargic PSG struggled to build on Moise Kean's 22nd-minute equaliser.

That goal cancelled out Romain Hamouma's opener, but PSG were ultimately fortunate Saint-Etienne did not snatch a first win over the capital club since 2012, their point enough to move second but three points behind Lyon.

Both goalkeepers were called into action inside the opening 10 minutes as Keylor Navas denied Harold Moukoudi at one end before Moise Kean tested Jessy Moulin at the other.

Yet Pochettino's tenure had its first setback 19 minutes in when PSG played themselves into trouble, Idrissa Gueye's slip pounced on by Denis Bouanga, with Hamouma supplying a neat finish over Navas.

PSG hit back inside three minutes, however, as Marco Verratti played in Kean to slam in the first goal of the Pochettino era on the turn.

Mathieu Debuchy's low strike forced Navas into a smart stop before half-time, and PSG's goalkeeper came to their rescue again in the second period, blocking Bouanga's path to goal.

Navas was beaten with 20 minutes remaining, but the crossbar kept out Bouanga's header.

Kean snatched at a good chance as PSG sparked back into life, yet Angel Di Maria's low strike – well saved by Moulin – was the only shot on target the visitors managed in the second half as Pochettino was forced to settle for a point.

Neymar remains unavailable for Mauricio Pochettino's first match in charge of Paris Saint-Germain, though the new coach has called up 17-year-old Xavi Simons to be a part of the squad.

Following over a week of strong speculation, former Tottenham boss Pochettino was finally appointed by PSG on January 2, replacing Thomas Tuchel after his dismissal.

Tuchel had been shown the door despite leading PSG to last season's Champions League final, which the German also guided them through this season despite a tricky group.

But the club were reportedly concerned about his capability of getting them past Barcelona in the next round, while he had also engaged in a public spat with sporting director Leonardo over transfers.

Pochettino signed on until the end of next season and his first game in charge is at Saint-Etienne on Wednesday, with PSG hoping a win takes them back to the Ligue 1 summit.

They will have to continue to make do without Neymar, who in December was ruled out until this month with an ankle injury.

PSG are yet to confirm when exactly they expect the Brazilian to return, though the trip to Les Verts has come too soon.

Pochettino earned a reputation at Spurs and Southampton for trusting young players, and he has named several teenagers in his first squad with the Parisians as well.

While Kays Ruiz, Bandiougou Fadiga and Timothee Pembele all made Ligue 1 appearances under Tuchel, Simons did not.

A Netherlands youth international signed from Barcelona in 2019, Simons has long cultivated a keen following online through his social media activity and relationship with Nike.

Throughout his teenage years he has been linked with many of the world's biggest clubs, having been regarded highly at Barca, but it is at PSG where the technical midfielder appears primed to make a breakthrough.

The youngster was named in two Ligue 1 matchday squads earlier this season, though the most recent was in October and he is yet to make his official debut for the club.