Leo Messi didn't play the second half between Barcelona and Athletic Club as a precaution. After scoring from the penalty spot in the first half, he didn't took part in the second.
Weloba reports Messi felt some little pain in his right leg and Luis Enrique decided not to risk him, as Barcelona was already winning 2-0.
In his post-match press conference, Luis Enrique confirmed the news. Messi will be tested by the doctors this Monday.