Serena Williams' doubles match in doubt after partner Victoria Mboko suffers injury

[p]The 19-year-old Canadian teamed up with [a href="https://www.flashscore.ca/player/williams-serena/ttsu68nH/"]Williams[/a] to win a ‌doubles match on Tuesday as ⁠the ‌44-year-old American great returned to action after ​almost four years away from the sport.[/p][p]Having beaten ​third seeds [a href="https://www.flashscore.ca/player/melichar-nicole/zDMLQaib/"]Nicole Melichar-Martinez[/a] and [a href="https://www.flashscore.ca/player/routliffe-erin/CvDr9J3L/"]Erin Routliffe[/a] they were scheduled to ⁠face [a href="https://www.flashscore.ca/player/fernandez-leylah-annie/8EI3pJOd/"]Leylah ​Fernandez[/a] and [a href="https://www.flashscore.ca/player/siegemund-laura/ETkoNgxJ/"]Laura Siegemund[/a] in the [a href="https://www.flashscore.ca/game/tennis/fernandez-l-a-8EI3pJOd/siegemund-l-ETkoNgxJ/?mid=WvnyNaIs"]quarter-finals on Thursday[/a].[/p][p][a href="https://www.flashscore.ca/player/mboko-victoria/AqVez8TJ/"]Mboko[/a], trailing [a href="https://www.flashscore.ca/game/tennis/mboko-v-AqVez8TJ/pliskova-ka-xGn9KNfO/?mid=WpkMunm4"]6-2, 3-4[/a] to the powerful Czech ‌player, had a break point but fell awkwardly on the slick grass behind the baseline as she tried to change direction.[/p][embed guid="67f0f2f6-79f4-4629-b3ef-07c03145fa90" url="https://x.com/QueensTennis/status/2064738252158873660" social-type="twitter" /][p]After being helped to the net she looked uncomfortable and emotional and opted to retire.[/p][p]Earlier on ‌a showery day at the ​pre-Wimbledon tournament, second seed [a href="https://www.flashscore.ca/player/anisimova-amanda/nwkutKbi/"]Amanda Anisimova[/a] ‌breezed past Germany's Laura Siegemund 6-1, 6-3 to set up a quarter-final against fellow American [a href="https://www.flashscore.ca/player/jovic-iva/bmWvBlnL/"]Iva Jovic[/a] who easily ⁠beat [a href="https://www.flashscore.ca/player/eala-alexandra/ppu9X7PH/"]Alexandra ⁠Eala[/a] 6-2, 6-2.[/p]