Fabregas and Costa
Fabregas and Costa accused of showing a lack of commitment to Spanish national side.Getty

Chelsea manager Jose Mourinho has continued his war of words with the Spanish national team after hitting out at comments made by Real Madrid star Sergio Ramos.

Blues duo Cesc Fabregas and Diego Costa were both unable to represent La Roja during the recent international break due to injury but were fit to return and play integral roles in Chelsea's 2-0 win over West Bromwich Albion on Saturday.

Ramos had urged some of his countrymen to show greater commitment to the national team, although the defender later claimed his remarks were not aimed at Costa and Fabregas.

Mourinho, however, leapt to the defence of his players and in the latest of a series of exchanges regarding the fitness of Chelsea's Spanish contingent, urged Ramos to keep quiet.

"Since I've known Ramos he has been a fantastic football player, but he is not a doctor and I am the same. I do my job the best I can but I am not a doctor," Mourinho told reporters on Saturday.

"My doctor and the doctor of the Spanish national team, they had the scans and they decided that the player was not in the condition to play.

"I am nobody to go against it and I don't think Sergio did a medicine Masters in the last couple of years to understand about it.

"[Vincent] Kompany didn't play for Belgium against Wales and he played today [Saturday]. Has he a compromise with his national team? I think he has. He is the captain of Belgium.

"Did he 'cheat' by not playing against Wales to play today? I don't think he did. So we all accepted that he was injured."

Costa and Fabregas both featured in Chelsea's final game before the recent international break – a 2-1 win over Liverpool in which the striker also scored. While Bosque stopped short of questioning the commitment of his players, he did claim the Chelsea pair may have lost their place in his side after their recent absences.

"If Del Bosque doesn't trust his doctor that is his problem, not my problem," Mourinho continued. "I speak with my doctor and I believe in what my doctor tells me. Nothing else. No problem.

"Fabregas was in a doubtful situation, Diego no. Diego recovered totally from his problem with these two weeks that he had to rest and to improve his injury."