Lionel Messi injured his back in Argentina's friendly on Friday against Honduras.

Messi went to the ground after taking a knee to the torso.

Messi was seen holding his back and walking gingerly when he left the pitch in the 64th minute.

Trainers were seen rubbing Messi's lower back before taking him into the tunnel.

Argentina begins the Copa America on June 6th against Chile.

Cristiano Ronaldo suffered a thigh issue in training but Zinedine Zidane insists he'll still play in the Champions League Final this weekend against Atletico Madrid.

Ronaldo hurt his left thigh when colliding with Kiko Casilla following a push from Dani Carvajal and, after receiving treatment on the field, threw a water bottle in anger as he headed for the changing rooms.

“There’s not going to be any problems that Cristiano Ronaldo goes in to the final at 100%," said Zidane. "On Saturday he didn’t play a game we played between ourselves as precaution. We’ll see how he is today, but he’ll be ready for Saturday.

“We’re going in to it on form, as we should be, but this doesn’t mean anything. James [Rodríguez] is also a bit better and so is [Alvaro] Arbeloa. The only bad one is Varane and that is serious.

“He is now out for Saturday. He may not be ready in two or three weeks. It is less serious than we thought. He will travel but will not play on Saturday.

“With regard to the selection I hope he can play the Euros. It’s a blow for him and I’m worried about him.”

Luis Suarez is likely to miss the start of the Copa America with a hamstring injury.

Suarez suffered the hamstring injury in the Copa del Rey final.

The club said Suarez will begin his rehabilitation in Barcelona before joining the Uruguay squad on 1 June in the United States, where “he’ll continue with the second phase of his recovery.”

Suárez was in tears after being substituted in the 56th minute of Barcelona’s 2-0 extra time win over Sevilla. He later said on Twitter that he hoped the injury was “nothing so I can be with my national team next week.”

Jozy Altidore is expected to miss the next six to eight weeks with a hamstring injury, ruling him out of the Copa America with the United States.

Altidore, who has yet to score for Toronto FC in this season, was hurt while taking a penalty that was saved.

Altidore also injured a hamstring against Jamaica in the 2011 CONCACAF Gold Cup and missed the final, then had another hamstring injury during the Americans' 2014 World Cup opener against Ghana.

Marco Verratti has undergone surgery on a persistent groin injury.

Verratti had been troubled by the injury for several months.

Verratti won't play for Italy in Euro 2016.

Danny Welbeck will miss at least nine months after suffering a serious knee injury.

Welbeck will miss the European Championship for England and a large part of next season with Arsenal.

Welbeck had been playing well for Arsenal, scoring five goals since his return, and was set to be included in Roy Hodgson's squad for the Euros.

Welbeck underwent scans on Monday and Tuesday, and Arsenal said he underwent successful surgery on Wednesday.

"Specialists determined surgery was required after scans and tests revealed significant cartilage damage," the club said in a statement. "Danny will miss the Euro 2016 Championship in the summer and his full recovery is expected to take approximately nine months."

Alex Oxlade-Chamberlain will miss the European Championship after suffering a new knee injury in training.

Oxlade-Chamberlain was set to return from the knee injury he sustained against Barcelona in February but Wenger said he had picked up a fresh injury in training on Monday that will rule him out for six to eight weeks.

"It's very sad, because he was quite ready physically, and sharp in training," Wenger said on Friday at his news conference.

Wenger said "there is no chance" he will recover in time for the Euros, which start next month in France, adding: "He'll be back in the beginning of July."

Gareth Bale and Keylor Navas picked up injuries in Real Madrid's Champions League match on Wednesday against Manchester City.

Bale has a knee issue while Navas injured his Achilles tendon.

Karim Benzema and Casemiro, who missed the City game due to fitness issues, have returned to training with their teammates it remains to be seen if they will be risked against Valencia.

Real Madrid will play Atletico Madrid in the Champions League Final on May 28th.

Cristiano Ronaldo completed Monday's training session with Real Madrid as he recovers from a thigh injury.

Ronaldo missed last week's match at Manchester City and also Saturday's La Liga match.

Ronaldo also was back in training on Sunday, both on his own and with the team on a limited basis.

Real Madrid will host City on Wednesday in the second leg of their Champions League tie.