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Former world No. 3 Elina Svitolina announced on Monday that she is parting ways with coach Andrew Bettles, ending a five-year working relationship.

“I am very thankful for all his hard work and endless support,” Svitolina wrote. “I wish him only the best in his future career!”

Svitolina named Bettles her official coach in 2018 after originally hiring him as her hitting partner. During the five years they worked together, Svitolina won 11 WTA titles and an Olympic bronze medal.

Svitolina joins US Open champion Emma Raducanu in the search for a new coach.