British number two Dan Evans put a disappointing start to 2014 behind him to win his first ATP main-draw match of the year, beating Jan Hajek in Zagreb.
The 23-year-old was
He was then for their victory in USA after going against coach Leon Smith's wishes by not playing a tournament in Hawaii.
Evans, a lucky loser in qualifying, comfortably beat Czech Hajek, 6-3, 6-1 to make the second round.
Birmingham-based Evans had been beaten by Germany's Bjorn Phau in qualifying.