The Serbian , 23 , came through 4 - 6 6 - 3 7 - 6 ( 7 - 4 ) to clinch his seventh Masters Series win , his fourth title of the year .
The Serbian , 23 , take his 2011 record to 24 - 0 .
The Serbian , 23 , came through 4 - 6 6 - 3 7 - 6 ( 7 - 4 ) to clinch his seventh Masters Series win , his fourth title of the year and take his 2011 record to 24 - 0 .