In a pre-Wimbledon lead-up at Queen’s Club, Serena Williams returned to competitive tennis in doubles with 19-year-old Canadian star Victoria Mboko, aiming to build momentum on the grass.

Mboko slipped at the baseline during the match and immediately injury forced retirement, with her left knee giving way as she showed instability.

Mboko, seeded third and ranked ninth in singles, was leading 4-3 in the second set when she retired, as Plíšková had taken the first set 6-2.

The report comes from The Canadian Press, published June 10, 2026, in London.

The piece draws on material from The Canadian Press and The Associated Press published on the same day.

Williams expressed excitement about competing in Berlin and using the grass-court stretch to gain rhythm for the season.

Coverage framed the Williams return and Mboko’s rise as a high-profile storyline for the grass-court season.

The page features a wide array of other briefs, but the excerpt provides no additional details on Mboko’s condition or the match outcome.

The Queen’s Club event, a WTA 500 grass-court tune-up, faced showery conditions with schedule changes ahead for Thursday.

The article notes Williams’ first competitive appearance since the 2022 US Open and positions Berlin as an important step in her comeback.

Plíšková’s win at that moment secured her place in the next round and continued her grass-court campaign.

Williams had warned grass could be tricky, given weather and surface, before returning to grass-court action.