Andy Murray is feeling the benefit of having Ivan Lendl back in his corner as he prepares for another Wimbledon semi-final.

The world No.2 is through to the last four at the All England Club for the seventh time in the last eight years and will play Tomas Berdych on Friday.

Murray reunited with coach Lendl two weeks before Wimbledon and so far they are unbeaten in 10 matches, with the Scot winning his fifth Queen’s title ahead of the championships.

The pair surprisingly split in March 2014 after the best two years of Murray’s career and, when Lendl said he was ready to give it another shot, the Scot did not hesitate.

Perceived wisdom is that Murray is a calmer, more positive figure on court with the emotionless face of Lendl looking down on him.

It was not quite like that in his topsy-turvy quarter-final against Jo-Wilfried Tsonga on Wednesday, but crucially he did not allow himself to become too negative and shouted to his box early in the fifth set: “No way I’m losing this match.”

“It’s beneficial having him there, for sure, because I trust him, have a lot of confidence in him,” Murray said of Lendl’s influence.

“So, for sure, he can help when I’m on the court a little bit, just his presence. Might be a small amount but every little bit helps.

“The pre-match stuff, the work that you do in preparation for the matches, is where you get the big benefit.

“When this tournament’s finished, the training weeks are really where I think you get the biggest benefit. Hopefully I’ll have a few of them between now and the end of the year.”

Had Berdych had his way, Lendl would be in his box instead of Murray’s.

Lendl won eight grand slam titles under the Czech flag, although is now an American citizen, and Berdych made no secret of his desire to tempt Lendl back onto the circuit following his split from Murray.

He had no joy and instead hired Dani Vallverdu, Lendl’s right-hand man while coaching Murray, but their partnership came to an end following a chastening 6-0 6-0 loss to David Goffin in Rome in May.

Berdych was one of Murray’s most difficult opponents earlier in his career and won six of their first 10 meetings but the Brit has since chalked up four successive victories, losing only one set.

Seven-times champion Roger Federer and sixth seed Milos Raonic clash in Friday’s first semi-final.