John Isner extended his record by winning his 499th career tiebreak

Ohn Isner improved his record by winning his 499th career overtime and reached his hometown Dallas Open quarterfinals on Thursday with a 6-3, 7-6(1) win over Daniel Altmaier.Isner had the only save of the game, leading 4-2 in the first set before finishing the set with her serve.  The second-round