Carlos Alcaraz suffered a 6-3, 3-6, 10-7 defeat to Frances Tiafoe in New Jersey, marking his first match since missing the Davis Cup Finals due to injury.
Jannik Sinner continued his superlative record on the hard courts, while Frances Tiafoe was forced to retire at the Cincinnati Masters on Wednesday.
As if it wasn't enough for the Canadian Open to lack star power, Frances Tiafoe has now hit out at the extended schedule.
Cameron Norrie produced one of his finest Wimbledon performances to defeat American 12th seed Frances Tiafoe in four sets and book his place in the third round.
Taylor Fritz is one win away from his American dream after reaching the US Open final.
Frances Tiafoe is determined to become the first American to reach the US Open final, as he prepares to face Taylor Fritz in the semi-finals.