Lionel Messi scored in Barcelona's Copa del Rey win over Malaga before his injury.
Barcelona assistant head coach Jordi Roura told the club's official website that the leg injury was nothing serious, as ESPN reported.
The Argentina forward is unlikely to miss the Champions League last-16 tie against AC Milan, but other clubs in the tournament are waiting anxiously on news of their injured players.
Here we take a look at the injury situation for some Champions League competitors.
Real Madrid goalkeeper Iker Casillas leaves the field against Valencia after breaking a bone in his hand.
The Spain No. 1 broke a bone in his hand during the 1-1 draw with Valencia in the Copa del Rey quarterfinal last week and has been ruled out for up to 12 weeks, reports Goal.com.
Casillas was hurt when teammate Alvaro Arbeloa kicked his hand while trying to clear the ball.
Real have moved to cover Casillas' absence for the next three months by signing Diego Lopez from Sevilla.
AC Milan captain Massimo Ambrosini is facing a race against time to be fit for the Champions League tie against Barcelona.
The 35-year-old picked up a thigh muscle problem during the goalless draw with Sampdoria in Serie A two weeks ago and has been ruled out for a month.
The news of Ambrosini's injury comes after fellow midfielder Nigel de Jong was ruled out for the rest of the season with an Achilles' tendon problem.
Manchester United midfielder Darren Fletcher played against Braga in the Champions League group stages this season.
The Scotland international made his first appearance since December 2011 when he played in the group-stage match against Galatasaray in September, but the chronic condition has not cleared and needs further treatment.
Fletcher was an unused substitute in United's Champions League triumph in 2008 but missed the following year's final defeat to Barcelona through suspension.
Fletcher featured five times for United during the group stages this season.
Neven Subotic challenges Manchester City striker Sergio Aguero.
The Serbia international tore muscles in his calf during a friendly win over Albacete earlier this month and has been ruled out for up to six weeks.
Brazilian defender Felipe Santana has deputised for the 24-year-old Subotic since the defender's injury.
Schalke's on-loan winger Ibrahim Afellay has been ruled out for two months.
Schalke have suffered a double-injury blow as they prepare for the Champions League tie against Galatasaray next month.
Holland international winger Ibrahim Afellay, who is on loan at the Bundesliga club from Barcelona, had just recovered from a hamstring problem when he tore a thigh muscle three weeks ago, which will rule him out for two months.
Midfielder Christoph Moritz picked up a knee ligament tear during a friendly win over Al-Sadd earlier this month and will be out for five weeks, according to a report on uefa.com.