Never judge a book by its cover and never judge a player by their racquet.
Petra Kvitova learned that tennis truism when she got pranked by Tomas Berdych and Tag Heuer.
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The premise: an elderly Czech artist named Hubert Schmidt presents Kvitova with a portrait of her. She's asked if she'll fulfill the older man's dream of hitting a few balls with her after the presentation.
Kvitova, a Tag Heuer brand ambassador, agrees and seems to be expecting a gentle hit with an old dude. What happens next is an eye-opener.
Armed with a wood racquet, "the artist" played by long-time Kvitova friend Berdych wearing very convincing make-up that makes him look a little like Doc Brown from the Back to the Future franchise, proceeds to push the Wimbledon winner around the court.
"He's pretty good," Kvitova says with a chuckle at one point.
While the make-up is convincing, Kvitova detects the Berdych DNA in the strokes and serve and correctly identifies her adversary when they meet at net for the post-hit handshake.