Isner to Meet Karlovic in Quarters of Hall of Fame Tennis Championships
In the second round of the Hall of Fame Tennis Championships in Newport, R.I., two-time defending champion John Isner extended his Newport winning streak to 12 victories, defeating Adrian Mannarino of France to earn a spot in the quarterfinals. On Friday, he’ll face fellow big server Ivo Karlovic, who defeated Canadian Vasek Pospisil, in three…

