LONDON, June ⁠11 (Reuters) - Serena Williams' comeback was put ⁠on hold on Thursday as ‌her doubles partner Victoria Mboko withdrew from the Queen's Club WTA event with a ​knee injury.

After nearly four years ⁠away, the 44-year-old ⁠American great partnered Canadian teenager Mboko ⁠to ‌victory against Nicole Melichar-Martinez and Erin Routliffe in front ⁠of a sell-out crowd on Tuesday.