Stan Wawrinka’s preparation for the defence of his US Open title has taken a hit after withdrawing from two warm-up events with a knee injury.
The world No. 4 was suffering with the problem during his first-round exit at the hands of Daniil Medvedev at Wimbledon and suggested he would take some time away from the sport in order to fix the issue.
However, the 32-year-old has not recovered in time to participate at the Rogers Cup in Montreal or the Cincinnati Masters the following week as he errs on the side of caution.
He posted on Facebook: “After much backwards and forwards and consultations with my doctors and my team unfortunately I have decided to skip Canada and Cincinnati to be on the safe side even though I’ve been battling hard to make these events.
“Hugely disappointing for my fans and myself that I have to make this decision, but I need to be 100 per cent confident before I resume competition till the injury that plagued me in Wimbeldon has been resolved.
“My team and I are doing everything possible to make this a speedy recovery.”