STANFORD, Calif.—Eugenie Bouchard has stopped working with coach Sam Sumyk, TENNIS.com has learned.

The Canadian brought on Sumyk following the Australian Open and compiled 4-13 record through Wimbledon, including eight opening-round losses. Bouchard reached the quarterfinals at the Australian Open, where she was a semifinalist in 2014, but fell in the first round at both Roland Garros and Wimbledon. The 2014 Wimbledon runner-up cited an abdominal injury for her recent run of play, but also said that she would "maybe" look at changing her team.

Sumyk previously coached Victoria Azarenka and helped her win two Grand Slam titles.

Bouchard came into the season ranked No. 7 but decided to end her coaching relationship with Nick Saviano, who coached her to two Grand Slam semifinals and a final and took her to No. 5 in the rankings. She is now ranked 25th and withdrew from this week's event in Washington with the abdominal injury.

Bouchard will be hitting with Serbian Marko Dragic, who has trained with her previously in Florida, but she has yet to hire a new coach. She is next scheduled to play the WTA Premier tournament in Toronto, where she will be a local favorite at the event.