Stars literally collided At Will Ferrell's Desert Smash Pro Exhibition, in charity matches held Tuesday. Novak Djokovic and Ferrell got feral on Kevin Spacey and Australian Open champ Stanislas Wawrinka, with a feisty duel—and sharp repartee to match—taking place at the La Quinta Resort and Club in California. Here's a snapshot of tennis uber-fans Ferrell and Spacey going nose to nose, sans racquets:

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Now, roll footage:

It was the annual event's tenth anniversary, and the celebrities on hand did not disappoint in terms of entertainment factor at the event, which benefits Cancer for College. Aside from the Ferrell–Spacey antics as Djokovic and Wawrinka looked on, Joel McHale tagged Rebel Wilson with a serve:

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Famous people: They're just like us league players and weekend hackers.

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Djokovic even resorted to sporting a tragic-looking wig in the desert:

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Ferrell later made his way to a charity music event featuring Boys II Men and Nelly. (Because who doesn't love 2001? And 1995?) What's your favorite takeaway from this event? Good on these celebrated folks for aiding the fight against cancer and having fun doing it, all while casting a spotlight on sport.

Got a thought, a tip, or a point to make? Hit me on Twitter @jonscott9.