British number two James Ward was inspired to the biggest victory of his career by the menacing presence of a cage fighter in his corner.
Ward beat Stanislas Wawrinka, who is ranked 202 places above him at 14 in the world, in straight sets to reach the third round of the AEGON Championships.
Three weeks ago, Ward recruited Argentinian mixed martial artist Diego Visotzky as his new fitness trainer in a bid to make a permanent impact on the ATP Tour.
“He’s taught me a lot and given me a lot of discipline,” said Ward, who will face defending champion Sam Querrey in the third round.
“A lot of it is the way he talks and the way he acts and how professional he is.
“He knows if he goes in the ring and messes around, he’s going to get beaten up - and the same sort of principle applies on court.
“You know, if you don’t go in there prepared, you go down a break early on and it’s tough to fight your way back the better players you play.”
Ward won the first set 7-3 on a tie-break before holding his nerve to serve out a 7-6 6-3 victory against the fourth seed.
British number one Andy Murray, the champion at Queen’s in 2009, will launch his bid to regain the title today against Xavier Malisse.