Tennis superstars (and all around BFFs) Caroline Wozniacki and Serena Williams are teaming up for The Amazing Race.

Okay, no, they're not actually doing that. But how cool would that be?

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It was the 25-year-old Wozniacki who first floated the possibility out on social media, sending the minds of millions of tennis fans aflutter:

"Was just watching the Amazing Race," Wozniacki tweeted. "How fun would it be if we teamed up together @serenawilliams??"

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To answer Wozniacki's question: very fun. However, the reality of seeing these two friends taking time away from the court to run around the world in dirty clothes is, let's just say, a long shot. Wozniacki is coming off a great 2014 season and just entering the prime of her career, while Serena has had arguably the best career in women's tennis history -- while showing no signs of slowing down!

Check out more of these two good friends -- and fierce competitors -- below: