ANDY MURRAY vowed there is plenty more to come after surviving a few sticky moments in his first-round win over Somdev Devvarman at the US Open.

The fourth seed could easily have lost the first set after dropping his serve in the opening game but he pulled through on a tie-break and went on to dominate.

Murray does not consider a bit of a first-round struggle to be a bad thing and feels experience has taught him that working your way into a tournament is the best way to succeed.

He said: “I think I definitely can play better, and that’s important. I don’t think you want to be playing your best tennis right at the beginning of the tournament.

“I think that’s something that, over the years, I’ve got better at understanding. I would get very frustrated in matches if I wasn’t playing great right at the beginning.

“I didn’t start the match great. But I actually calmed down more as the match went on and fought my way out of a little bit of a tricky situation in the first set. So I’m happy I can still improve. It’s all about just winning.”

Murray is likely to need to raise his game today if he is to progress to the third round, with big-hitting Dutchman Robin Haase definitely a potential banana skin.

Haase won their only previous match, in Rotterdam in 2008, and is currently in the best form of his career after winning his first ATP World Tour event in Kitzbuhel earlier this month.