Costa was rumored to be injured prior to his last game with Chelsea, although he ended up playing. The rising star from Barcelona played yesterday with the U-21 Spanish team

The Royal Spanish Football Federation informed via a press release Diego Costa will be sidelined from La Roja's first Euro 2016 qualifying match, and will be replaced on the list by Barcelona's rising player Munir El Haddadi.

"Diego Costa is sidelined from the National Team due to a myofascial injury hamstring muscle in his left thigh. Given injury was detected with an MRI scan carried out at nnon in the Sanitas Clinic of La Moraleja, after the player expressed some discomfort during yesterday’s match against France," can be read in the press release.

Munir El Haddadi started in yesterday's match for the Spanish U-21 team against Hungary. If he plays on Monday against Macedonia, this will be his first international match with La Roja.

The player's club informed via Twitter about their top prospect's situation:

The injury to the Spanish international striker will be of particular concern to Chelsea's boss Jose Mourinho, since Costa has scored four goals in three matches for the Blues, and has been battling all year with this same injury, which threatened his participation in Chelsea's last Premier League match.