Cristiano Ronaldo has declared Euro 2024 will "without a doubt" be his last European Championships, after Portugal scraped past Slovenia to reach the quarter-finals.

Ronaldo missed chance after chance as Slovenia held on for a goalless draw in Monday's last-16 tie, seeing an extra-time penalty turned away by goalkeeper Jan Oblak.

The five-time Ballon d'Or winner was seen in tears at the extra-time interval, later saying he hit "rock bottom" at that moment.

However, he recovered to convert Portugal's first kick of the shoot-out, while goalkeeper Diogo Costa saved all three of Slovenia's efforts as the Selecao booked a quarter-final date with France.

Ronaldo is playing at his 11th major tournament (World Cup/Euros) and this is the first in which he failed to score a group-stage goal.

He is still yet to find the net with 20 shots at the tournament, with those efforts giving him a cumulative total of 2.75 expected goals (xG) – the second-most of any player.

Only Germany's Kai Havertz, who has taken and scored two penalties, has accumulated a higher figure, with 3.75.

Ronaldo turned 39 in February and many have questioned whether this will be his final opportunity to win more international silverware. 

He is certain he will not still be playing when Euro 2028 rolls around, telling RTP: "Without a doubt it's the last Euros [for me], of course it is."

Ronaldo dismissed the suggestion his extra-time tears were the result of him approaching the end of his career, saying: "I'm not emotional about that. 

"I'm moved by everything that football entails, by the enthusiasm I have for the game, the enthusiasm I see in the fans, having my family here, people's passion.

"It's not about leaving the world of football. What else is there for me to do or win?" 

Cristiano Ronaldo conceded the feelings were bittersweet after Portugal progressed to the last eight of Euro 2024.

Ronaldo saw a penalty brilliantly saved by Jan Oblak during extra time of Monday's clash with Slovenia.

The 39-year-old was in tears at the interval during the extra 30 minutes, but stepped up to take Portugal's first spot-kick in the shootout and made no mistake with his finish.

Diogo Costa was Portugal's hero, as he became the first goalkeeper to save three shots in a European Championship penalty shootout without conceding.

Ronaldo teared up again during his media duties at full-time.

"Even the strongest people have their [bad] days. I was at rock bottom when the team needed me the most," said Ronaldo, as quoted by BBC Sport.

"Sadness at the start is joy at the end. That's what football is. Moments, inexplicable moments. I feel sad and happy at the same time.

"But the important thing is to enjoy it. The team did an extraordinary job.

"We fought right to the end and I think we deserved it."

Ronaldo, the record goalscorer and appearance maker at the Euros, has had 20 shots so far in Germany without finding the back of the net.

"We all know that Cristiano is the hardest worker," said goalkeeper Costa.

"I understand how frustrated he is because he devotes all his time to this. It’s a pleasure and an honour to be on the same team as him.

"We're a family, I really think this. I focus on making the best of these chances and I wanted to help the team. This is the most important thing."

Portugal will take on fellow heavyweights France in the quarter-finals.

Ante Budimir's third international goal ensured Croatia secured a first victory over Portugal as they concluded their Euro 2024 preparations with a win. 

The visitors took the lead from the penalty spot inside the opening 10 minutes after Vitinha's clumsy challenge on Mateo Kovacic saw captain Luka Modric assume responsibility and fire the ball beyond Diogo Costa. 

Croatia's dominance continued for much of the first period, with Lovro Majer forcing Portugal's goalkeeper into making a smart save as Zlatko Dalic's side were rarely troubled by an attacking quartet of Bernardo Silva, Bruno Fernandes, Joao Felix and Goncalo Ramos.

However, substitute Diogo Jota was on hand to level the scores three minutes after the restart, tapping home Nelson Semedo's teasing delivery into the area. 

Heading into the eighth meeting between the sides, Croatia had managed just one draw from their previous seven encounters with Portugal, but a maiden triumph was theirs when striker Budimir reacted quickest to turn home Mario Pasalic's shot that had come back off the crossbar. 

The introductions of Premier League duo Pedro Neto and Mathues Nunes offered the hosts more attacking pedigree, but they were unable to find a way past Dominik Livakovic as Ruben Dias squandered a golden opportunity late on to share the spoils, with Cristiano Ronaldo remaining an unused substitute.

Data Debrief: Budimir the boy as Kovacic stays perfect

Budimir's three shots in the encounter produced the highest xG of anyone on the pitch at 1.07, with Portugal's players combined finishing with an xG of only 1.54.

At the heart of Croatia's midfield, Kovacic was the only player for either side to record a 100 per cent pass completion, completing all 39 of his attempted passes.