Andy Murray will have coach Ivan Lendl back in his box at the ATP Tour Finals for the first time since the U.S. Open, for what will also be his first event at the summit of the men’s game.

The new No. 1 said Lendl congratulated him on getting to the top of the rankings, but did not comment much more about it.

“We didn’t chat too long,” Murray said, speaking to reporters before the ATP Tour Finals. “He’d obviously watched quite a few of my matches, but when we got here, it was just back to work and the things we’re trying to improve and get better at. I like that. It’s good.”

Murray did get a bigger reaction from others. “I got way more messages from friends and family and colleagues for getting to No. 1 than I had from any tournament I had ever won,” he said. “And I know from being out and about that a lot of people have come up and congratulated me, which hasn’t always been the case after big events.

“Even around here, the chefs and the security guards have mentioned it,” he added.