Roger Federer rolls past #DelPotro, and Angelique Kerber secures a spot in the quarterfinals of Miami Open‬ ‪http://tennischannel.com/news/top-stories/federer-rolls-past-del-potro-in-miami‬

KEY BISCAYNE, Fla. -- In one of the most anticipated matches of the tournament, Roger Federer cruised past Juan Martin Del Potro in the third round match of the Miami Open on Monday.It was Federer's blistering backhand versus Del Potro's venomous forehand