Feliciano Lopez has long been an arresting presence in Dubai.

Lopez was runner-up to Roger Federer in the 2004 Dubai final, fell to Andy Roddick in the 2008 title match and earned his 400th career win in style in Dubai yesterday.

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To celebrate the milestone, Feliciano joined the local police force.

Watch what happens when the serve-and-volleyer goes undercover for this spin a police cruiser.