Jamie Delgado is happy to bear the brunt of Andy Murray's on-court angst.
The world number two has long admitted that his habit of directing his frustration during matches at his support camp is something he needs to change.
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Delgado joined Murray's coaching team in February, initially as assistant to Amelie Mauresmo, but assumed sole responsibility when she left her role earlier this month.
The issue of Murray's on-court behaviour raised its head again when Mauresmo indicated in an interview that it played a part in their separation.
Murray flatly denied that, insisting the sole reason had been Mauresmo's reluctance to travel as much following the birth of her son last August.
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Delgado's introduction to life as Murray's coach at a grand slam has certainly been eventful, with the 29-year-old twice fighting back in five-set wins over Radek Stepanek and Mathias Bourgue in the opening two rounds at the French Open.
Murray made his frustration plain on several occasions, particularly during the Stepanek match, but Delgado does not see it as a problem.
He told Press Association Sport: "From my point of view, that's the way he's been on the court all his life, since I've been watching him and supporting him from afar.
"But one thing he always does is competes his best and, when the next point starts, he's always mentally tuned in.
"I understand the stresses that he's going through on the court as well. It's not easy, he might be winning a match then losing it or playing badly, or the pressure's on a lot, whatever it might be.
"He just expresses it more than others maybe but he quite often finds a way through it, that's for sure.
"I'm aware he says things that he says in the heat of the moment. Sometimes they're not accurate and sometimes they might be. It's been fine."
Delgado's career as a player never took him beyond 121 in the singles rankings but he holds the record of having played in 23 consecutive Wimbledons and only retired in 2014.
The 39-year-old previously coached Luxembourg's Gilles Muller, guiding him into the top 40 from outside 300 following injury.
Murray has been full of praise for the impact made by Delgado so far and is no hurry to appoint a new head coach.
Delgado said of the experience: "It's been great. With Amelie, it was not a huge amount of time we spent together, I think in total it was 10 days with her or two weeks maximum, so most of the time I have been doing it on my own, which I've really enjoyed.
"And working with Andy, I think it's helped that I've known him for so long as well. That's eased the transition into working with him with how it is right now so I've enjoyed it."
Murray admitted after his first two rounds that he was concerned by the amount of time he had spent on court so it was a relief to get through his third-round meeting with 6ft 11in Ivo Karlovic in straight sets.
Next up he meets the tour's other giant, 6ft 10in John Isner, and Delgado believes Murray is in good shape to go far in the tournament.
"It was a tough two or three days for sure," he said. "The stress was obviously high in the early rounds, long matches and overnight, there was a lot of drama in a few days and I think he was tired but I think he's recovered really well, and thankfully he had a straight-sets win yesterday, so I think physically he's got past that and he's in good shape."
Murray enjoys facing big servers and has never lost in 12 matches against Karlovic and Isner.
His supreme hand skills and quality of returning allow him to blunt the strength of his opponent.
But Isner is a much stronger player than Karlovic from the back of the court and has pushed Murray hard in most of their five previous meetings.
The American, seeded 15th, accepts Murray having just faced Karlovic could work against him, saying: " He's definitely got some reps in against a pretty big serve. I would have rather him played a grinder.
"But my serve is a little bit different. I think I can back it up better, as well. Our previous matches have been really close.
"He's played the big points better than me, which is one of the reasons why he's number two in the world. So I'm going to have to step up when I get opportunities - if I get them.
"It's a match I would love to win, and a match I believe I can win."