And some others call their coach whenever they get broken : 'Oh , I need my coach ! ' Serena Williams has had a resurgence under Patrick Mouratoglou 's guidance . The American is now ranked No. 1 in the world and will play her first grand slam final on Saturday against Victoria Azarenka of Belarus. But with French coach 's input Williams won final two grand slams last year . World No . 1 won 11 titles in 2013 , the best return since Martina Hingis in 1997 .
Serena Williams has had a resurgence under Patrick Mouratoglou 's guidance . The American is now ranked No. 1 in the world and will play her first grand slam final on Saturday against Victoria Azarenka of Belarus. But with French coach 's input Williams won final two grand slams last year . World No . 1 won 11 titles in 2013 , the best return since Martina Hingis in 1997 .