Sep 1, 2014, 9:38 PM EST
In just three weeks, Chelsea’s marquee summer signing has convinced all but the most cynical of naysayers that he is very much for real.
Watch, and enjoy.
Premier League Player of the Week
Week 1: Raheem Sterling, Liverpool
Week 2: Nacer Chadli, Tottenham Hotspur
Week 3: Diego Costa, Chelsea
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