Tomas Berdych played down the extra tension during his Australian Open semi-final loss to Andy Murray, labelling it no big deal.

Murray came out a 6-7 (6-8) 6-0 6-3 7-5 winner over the Czech on Rod Laver Arena on Thursday.

All the focus in the lead-up was on Murray's former coach and friend Dani Vallverdu, now in Berdych's corner, and what impact it would have.

Most of the tension came in the first set " Murray celebrated in the direction of Berdych's player's box and the Czech upset the Brit with words after clinching a tie-breaker.

But Berdych, eliminated in the semi-finals at Melbourne Park for the second straight year, said there was no added feeling.

"It was a big match generally," he said.

"That's how it is, I mean, when you're playing Andy Murray for a semi-final of a slam. What else you need to get more attention?

"So I think it's a big match anyway, and that's what I felt on court."

According to Berdych, he said to himself 'Well done, Tomas' as he approached his chair at the end of the first set.

That appeared to upset Murray, who complained to chair umpire Pascal Maria.

Asked if he had been annoyed by Murray's celebration when breaking back in the first set, Berdych again played down the tension.

"Really, guys, don't try to make any big deal about it. That was a match as any other else, and that's it," he said.

"I lost my serve, which I'm not definitely happy about, but lives go on. Then I was able to win it in the tie-break, and that's it.

"There is no really big deal about anything what was happening today on the court.

"I mean, it was a great battle. It was a good match, unfortunately with a bad end for me. That's how it is. That's the sport."

Berdych said he hoped to learn from the experience of another semi-final exit.

"I'm really not happy and not really in a good mood. I'm very disappointed to lose this match," he said.

"I mean, it was a big match. But anyway, I just need to come back stronger and get myself better for it, and that's it.

"What was the difference? I had one bad set for the second set, and that's it. I was just trying to get my chances, trying to fight for it, but as I said, it was not enough and I'm very disappointed with it."