Andy Murray gave coach Ivan Lendl the perfect welcome back with a fine win over France’s Nicolas Mahut at Queen’s Club in London.
The Briton, 29, saved set points in both sets as he won 7-6 (10-8) 7-6 (7-1) to reach round two of the Aegon Championships.
Lendl was courtside for the first time since 2014, having agreed last week to resume their working relationship.
Murray will face fellow Briton Aljaz Bedene after his win over Benoit Paire.
Slovenian-born Bedene made up 35 ranking places to beat the French world number 23 Paire 7-6 (8-6) 6-7 (7-9) 6-4 in two and a half hours.
Asked about Lendl, Murray told BBC Sport: “He doesn’t really give many signs during the match. He’s got quite a straight face.
“I started working with Jamie Delgado a few months ago and that’s worked extremely well, and obviously I had some of my best years with Ivan a few years ago.
“I think it’s a very strong team and I’m hoping they can help me win more major events.”
Swiss second seed Stan Wawrinka earlier lost 6-2 7-6 (7-3) to Spain’s Fernando Verdasco.