Lionel Messi was unable to finish Barcelona's May 12 match against Atletico Madrid due to a hamstring injury sustained in the 67th minute.
Barcelona manager Tito Vilanova confirmed it was "the same area" Messi had injured earlier in the season (per BBC Sport) and that he will have tests Monday to determine the extent of the injury and whether he will be out for "days or weeks."
UPDATE: Tuesday, May 14, at 7:05 a.m. ET by Brandon Galvin
Lionel Messi has been confirmed by Barcelona as having suffered a hamstring strain that will keep him out of action for two to three weeks...
Tests carried out on the player have today been confirmed by Barca as showing a strain in his right hamstring.
The injury is expected by the club to keep him out of action for the next two to three weeks, possibly ending his season, with his availability for upcoming games to be determined by the injury’s evolution.
---End of update---
Barcelona had already used their three substitutions and therefore were unable to replace their star. He was still taken off, however, and La Blaugrana played the remainder of the game with 10 men.
Messi has struggled with his left hamstring ever since straining it against Paris Saint-Germain in the first leg of their UEFA Champions League quarterfinal.
He was able to play the second leg and guide the Catalan club through to the semifinal in the process, but he was clearly struggling with the injury and eventually missed Barcelona's second leg against Bayern Munich.
No information is yet known on the severity of the injury, but if there is one positive to be found, it is the timing and lack of games left for Messi to miss this season.
Barcelona are not in the UEFA Champions League final nor the Copa del Rey final. Having already secured the La Liga title for 2013, they don't need Messi as much as usual for their remaining league games against Valladolid, Espanyol and Malaga.
Obviously, the Catalan giants would want the Argentine international to be healthy now, but they have to know that his long-term health is what matters most here.
Messi has tallied 54 goals and 14 assists in all competitions this season.
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