John Isner has served his way into the third round at the Sony Ericsson Open with a 2-6 6-3 6-4 over Nikolay Davydenko.
After Isner had comfortably held his first two service games, Davydenko won five games in a row to quickly seal the opening set.
The American settled immediately at the beginning of the second and, after claiming back-to-back love service holds, he claimed the single break in game four and went on to force a decider.
A single break was again enough in the final set, as Isner's emphatic serving kept the Russian at bay.
World number 10 Isner hit 12 aces to his opponent's three.
Written by
Robert Summerscales
Robert Summerscales
