Keystone
World number one Jannik Sinner failed to reach the quarter-finals of the ATP 1000 tournament in Montreal on his return to competitive action.
The South Tyrolean was beaten 3:6, 6:1, 2:6 by Russia's Andrei Rublev, the number 8 in the rankings.
Sinner played his first tournament since Wimbledon in the largest city in the Canadian province of Quebec. He missed the Olympic Games due to tonsillitis.
