Andy Murray moved into the field for the U.S. Open on Monday when another past champion at Flushing Meadows, Stan Wawrinka, pulled out because he still is recovering from foot surgery.

Murray is a former No. 1 and three-time Grand Slam title winner, including in New York in 2012. His ranking slid out of the top 100 after he had two hip operations in recent years. The 34-year-old from Scotland returned to the tour in June after a three-month absence because of a groin problem and reached the third round at Wimbledon, then withdrew from the singles competition at the Tokyo Olympics on July 25, citing a strained right quadriceps. He was the two-time reigning men's singles gold medalist.