London, June 8 -- Serena Williams says she has "nothing to prove" on her return to competitive tennis after an absence of nearly four years, adding her main motivation isthe prospect of her daughters seeing her play again.
The 23-time Grand Slam singles champion will line up alongside Canadian teenager Victoria Mboko in the doubles event at Queen's, which starts on Monday, according to BBC Sport.
The American said she was not putting any pressure on herself as she returns to the sport that she dominated for so many years.
"I've had enough pressure. It's really about my kids getting to see me play," Williams, 44, said.
"It's also that being an athlete is the best thing that you can be in the highest place.
"Having an opportunity to stil...