Sarra Errani and Roberta Vinci bag women's doubles title at Qatar Open tennis championship in Doha<br/><br/> Sarra Errani and Roberta Vinci duo have won the women's doubles title of Qatar Open Tennis Championship. They beat Katernia Srebotnik and Nadia Petrova in a fighting match 2-6,6-3,10-6 in Doha on Sunday.