Tennis bubble / Tennis air dome | DUOL - Air supported structure
WATCH: Where it all started, Roger Federer as a ball boy at the 1993 Swiss Indoors in Basel
Swiss Tennis Officials - The Officiating Team of the Ladies Championship Gstaad, a WTA International event. From left to right (front): Jaume Campistol (Spain, Chair Umpire), Alessandro Germani (Italy, Chair Umpire), Tamara