Queen's Club: Serena Williams pays tribute to partner Victoria Mboko after injury ended 'special' doubles campaign

Serena Williams, 44, paid tribute to her 19-year-old doubles partner Victoria Mboko after the Canadian was forced to withdraw from both Queen's Club and Wimbledon due to a knee injury. Mboko sustained the injury when she slipped during her singles match against Karolina Pliskova on Wednesday, retiring in the second set. The injury appears severe enough to end Mboko's grass-court season, with her officially withdrawing from the doubles on Thursday, ruling out their scheduled match against Leylah Fernandez and Laura Siegemund.