Big serving American John Isner, the top seed this week, has moved into the quarter finals of the BB&T Atlanta Open.
Isner beat Belgian Ruben Bemelmans 4-6, 6-3, 6-4 in the second round on Thursday night
The match lastes one hour and 55 moniues
Isner is looking for his second title in as many weeks and has been a finalist here in Atlanta the last two years.
Isner next meets 19-year-old countryman Jack Sock for a place in the semi finals