Two of the bigger names have already been ousted from the Heineken Open today as the tournament finally clicks into gear.
The first two days of the men's tournament at Stanley St lacked some quality and interest because the top four players received a first-round bye but all of the big names are in action today and there have been a couple of casualties.
Second seed and world No 12 Tommy Haas was beaten by promising American Jack Sock, who received a wildcard for the tournament, 6-4 6-4. Haas struggled to find his range in his first competitive outing of the year but he wasn't really allowed to by Sock, who controlled the match.
The 21-year-old American set the tone with his first serve, firing down eight aces and winning 80 per cent of his first serves.
"Some of the important points I didn't play well, that's for sure," Haas said. "You can't get much of a rhythm when he's serving pretty well or you don't allow yourself to get the return back in play. The quickness, the little steps are definitely not there yet. It was a little bit of a struggle, no question about it. He played well when it counted."