Jason Day withdraws from the 2026 U.S. Open at Shinnecock Hills after developing a back injury during his opening round. Multiple outlets report he plays 10 holes before leaving the course, with one account describing him as being 7-over through 10 holes and another noting he withdraws mid-way through his first round. The injury forces Day to stop playing; he is taken off the course using a golf cart. One report says he started on the back nine, shot 7-over 42 on those holes, and then made a triple bogey on the first hole he played before pulling out. Coverage also notes Day’s recent season results, including a tie for second at the American Express and a 12th-place finish at the Masters, alongside comments that he has struggled in the period since. NDTV adds that the withdrawal comes after years of dealing with back-related issues. The sources agree on the timing (during his first round after about 10 holes) and the cause (a back injury), while the specific scoring sequence varies by outlet.