Tennis-Serena Williams gives birth to baby girl-coach

Sept 1 (Reuters) - Serena Williams has given birth to a baby girl, the first child for the former world number one tennis player, her coach Patrick Mouratoglou said on Twitter on Friday. The 35-year-old American, who is engaged to Reddit co-founder Alexis Ohanian, has not competed since winning the Australian Open in January but has posted several videos to social media showing her hitting balls during her pregnancy. (Reporting by Frank Pingue in Toronto, editing by Greg Stutchbury)