America's John Isner continued his good form this season with a victory over Croatia's Ivo Karlovic in the Quarter Finals of the ATP Event in Memhpis.
Isner won the 1st title of his career, in Auckland earlier this year and he backed that up by reaching the 4th round at the Australian Open where he lost to the British Number 1 Andy Murray.
Isner played some sparkling tennis in the 1st set and was able to attack Karlovic's 2nd serve at will the American was rewarded as he won the 1st set, 6-1.
The 2nd set went with serve with neither player getting much of a chance to break before Isner eventually sealed the set on the tiebreaker to win the match 6-1 7-6.
Karlovic at 6ft 10 and Isner at 6ft 9 are the 2 tallest players on the ATP tour.
Defending champions Andy Roddick suffered a shock 3 set loss to fellow American Sam Querrey.