Alex Dolgopolov is into the third round of the Sony Ericsson Open in Miami, Florida, following a straight-sets victory over Antonio Veic.
Dolgopolov was in trouble during the first set as his Croatian opponent found a break of serve.
However, the world number 18 broke the Croatian twice in quick succession as he claimed the set 6-4.
The second proved a far tighter affair as both players gave little away in the searing Florida heat.
With the set heading towards a tie-break, Dolgopolov found the crucial break of serve to take the set 7-5 and win the match.
