Great Britain's James Ward posted his first ever win at a Masters series event to reach the second round of the Western & Southern Open in Cincinnati.
The British number two beat two top-100 players in qualifying and defeated a third in Spain's Guillermo Garcia-Lopez in round one.
Ward, who will next play either Julien Benneteau, recovered from losing the second set to triumph 6-2 3-6 6-1 against the world number 32.
Ward has had a good run on the North American hard courts at second-tier Challenger level and carried that form into Tuesday's match.
Garcia-Lopez, in contrast, was on a four-match losing run and his lack of confidence showed in a lacklustre opening set.
Ward then missed eight break points in the first game of the second and was made to pay as Garcia-Lopez levelled the match.
But the British player responded superbly with a super solid deciding set, winning the first five games and clinching victory on his first match point.
Ward is only 11 places adrift of his highest ever ranking of 137 and has already guaranteed himself US dollars 21,945 in prize money.