Tennis-Sinner, Djokovic withdraw from US Open tune-up in Montreal

Jannik Sinner and Novak Djokovic have both withdrawn from the Montreal Masters, a key US Open tune-up event. The withdrawals remove two of the top contenders from the hardcourt tournament, dealing a blow to the event's star power ahead of the final Grand Slam of the season. No specific reasons for their withdrawals were immediately detailed, though such late exits often relate to injury management or fatigue.