Canada’s Masters 1000 bounces between two cities each season, giving Winnipeg a rare part in the tournament legend. Toronto hosts one side of the draw, Montreal the other, with the ATP and WTA trading spots on the calendar. The 96-player field then launches the North American hard-court stretch, when players adjust to blazing pace after clay. B. Shelton returns on the men’s side, V. Mboko on the women’s, both defending their titles. Expect long rallies to shorten quickly on this surface.