article_snippet: Costa's short-term involvement is an open question, though.
article_snippet: The Spain striker claimed The Spain striker 20th goal of the season with a wonderful curling effort to put Chelsea 2-0 up inside nine minutes, but hobbled off with a hamstring injury.
article_snippet: One negative for Chelsea was the hamstring injury suffered by Diego Costa, which ended Chelsea involvement .
article_snippet: Costa's replacement, Loic Remy, scored the winning goal and Mourinho thinks Chelsea has sufficient replacements .
article_snippet: Chelsea exit allowed for Remy's match-winning arrival, but whether Chelsea emerges from the imminent international break in match condition is uncertain. '
article_snippet: When a striker is playing, the team needs a goal to win the game and with 15 minutes to go a striker, a guy with a lot of experience of hamstring injuries, says "it is over for Chelsea", then it is over for Chelsea,' said Mourinho. '
article_snippet: If Mourinho is injured then We have Remy (centre), We have Drogba.
article_snippet: Costa can at least expect to miss Spain's forthcoming games against Ukraine and Holland, but despite the added rehabilitation time, Mourinho would rather be pressing on with the domestic calendar. '
article_snippet: For Diego (the break) is good, because imagine We play three matches in one week, that's three matches he doesn't play. '