24 hours ago, he was a red. Now, Olivier Giroud is very much a blue, having switched allegiances and sides of the River Thames.
Giroud moved from Arsenal to Premier League and London rivals Chelsea in an £18million deal on January transfer window deadline day.
The France international striker trained with his new team mates for the first time on Thursday, and could be in line for his debut at Watford this weekend.
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Wearing the blue of Chelsea, Giroud also looked a little blue, as he trained seriously at the club's Cobham facility.