Atletico Madrid have lost club captain Koke to a muscle injury at almost the worst possible moment of the season -- just when they are set to play a couple of big matches. 

The club informed on its website that Koke "ended the game last Saturday against RC Celta experiencing some discomforts," and adding that "the midfielder underwent some tests following the match, and the medical tests conducted by the medical staff confirmed that the captain has suffered an injury to right leg".