World No. 25 Milos Raonic, a native Canuck, stars—albeit wordlessly—in a couple TV spots for kids' tennis in Canada. It's that nation's equivalent of the American 10-and-Under initiative trotted out by the USTA, featuring "slower balls, smaller courts, right sized racquets."
These ads are funny, on par with (if not exceeding) the quality of the Andre Agassi–Steffi Graf–Michelle Obama clip that came out last year. (Mrs. Obama is quite the tennis fan in her own right.) Here's the first one from Tennis Canada: