We all know that Diego Costa is a bit of a loose cannon. The Chelsea striker loves to scrap with just about anyone, and tonight proved that he does not even draw the line at his own teammates.
For some reason, the 27-year-old decided to leave his foot in on Spain international colleague Iker Casillas during the first half of Chelsea’s crucial Champions League tie with Porto at Stamford Bridge.
Although Casillas made the most of what was a nothing challenge, Costa was rightly shown a yellow card for his foolishness and must now curb his combative style for the remainder of the contest.
A sending off is the last thing that the Blues need now that they have control of proceedings at half time, thanks to a 12th-minute own goal from Marcano Sierra after Casillas had saved a shot from Costa.
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Victory would guarantee Chelsea progress to the last 16 of the competition, but Costa has proved himself to be a disciplinary liability in the past and must control himself or risk the consequences.
Half-time: Chelsea 1-0 Porto
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