There was cause for concern at Real Madrid on Tuesday morning after Cristiano Ronaldo was seen limping out of their training session just days before the Champions League final.
In what was designated as an open day for the media, journalists fell silent as Ronaldo went down after being pushed by Dani Carvajal into goalkeeper Kiko Casilla.
He appeared to be in some pain before walking off early. It was the latest scare for the 31-year-old who is understandably desperate to play in Real Madrid's upcoming game against Atletico Madrid on Saturday.
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But he is obviously struggling with his fitness; Ronaldo failed to finish Real's final La Liga match against Deportivo La Coruna and has not completed any of the team's last three training sessions.
Ronaldo suffered a slight tear to his hamstring last month and was unable to play in Real Madrid's semi-final first leg against Manchester City. He returned for the second leg a week later but could not make an impact.
It is reported he underwent a radical treatment involving stem cells in an effort to speed up his recovery but it has been suggested that underlying problems are stopping him from performing at his very best.
It must surely be a huge concern for Zinedine Zidane as he attempts to win Real Madrid's 11th European Cup in the San Siro.
However, the Frenchman appeared to shrug off suggestions that Ronaldo would not be fit to start the Champions League final, telling reporters that the three-time Ballon d'Or winner is in "good shape".
He said: "There will be no problem. He felt something on Saturday when we had a game between us and he didn't play as a precaution.
"He will be ready for Saturday and I think we are in good shape physically."
Ronaldo has scored 51 goals this season including 16 in the Champions League alone. One goal in the final will equal his own record of 17, set in the triumphant 2013/14 campaign, in which they beat Atletico Madrid 4-1 after extra time.
Always one to chase individual accolades, you can be sure Ronaldo will be doing everything to make sure he breaks his record against Real's city rivals.
One man who definitely will not be playing in the final is defender Raphael Varane, who even faces a race against time to be fit for France's Euro 2016 campaign.
"It is sure that he will be injured for Saturday," Zidane said of the centre-back. "I expect he will be out for two or three weeks. I hope for him it isn't as severe as anticipated.
"I hope he'll have the chance to do something at the Euros."
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