Brad Gilbert — tennis junkie, junkballer, commentator, coach of legends — had roughly seven minutes to commerce his teaching hat for a microphone, to shift from serving to Coco Gauff handle her third-round match Friday evening to interviewing Novak Djokovic within the tunnel earlier than his.

That match, by the best way, ended simply after 1:30 a.m. on Saturday, and Gilbert had spent Friday afternoon calling matches earlier than heading to Gauff’s courtside field. It was properly after 2 a.m. when he received again to the New York LaGuardia Airport Marriott. Then he spent an hour analyzing the video of the match that Gauff’s subsequent opponent, Caroline Wozniacki, had gained that afternoon. Finally, round 3:30 a.m., he clicked off the sunshine. Rise and shine arrived at 6.

“Been coming to this place since 1981,” Gilbert, who travels with an espresso machine, mentioned between sips of espresso as he headed to his workplace, a.ok.a. the Billie Jean King National Tennis Center, on Saturday morning. “Wouldn’t have it any other way.”

Indeed, that is the life Gilbert has chosen.

For 40 years, he has been a near-ubiquitous presence within the sport, rising by means of the Eighties to the No. 4 rating on the planet, regardless of his quirky, awkward, ugly strokes, then pivoting to teaching and tv work, typically on the similar time, in that hybrid manner that’s oddly frequent in tennis. Andre Agassi had him at his facet when he gained the U.S. Open in 1994, as did Andy Roddick, in 2003.

Now, at 62 and a decade faraway from top-level teaching, Gilbert is again within the trenches and rapidly changing into a star of this yr’s U.S. Open, albeit in a supporting position to the 19-year-old Gauff, who’s among the many largest stars of this quintessentially American tennis celebration. One minute, Gilbert is chatting and applauding Gauff by means of a observe session. The subsequent, he’s hustling by means of the crowds, fist-bumping followers who deal with him like an outdated buddy on his manner as much as the ESPN commentary sales space to mingle with a decidedly older set of stars from his period, reminiscent of Chris Evert, Patrick McEnroe and Pam Shriver.

“A very funny man,” Gauff mentioned earlier this summer time of Gilbert, whose teaching exploits she knew little about, since, as she identified with a giggle, they principally occurred earlier than she was born. “I didn’t want to be with someone who’s a wall. But he’s definitely not a wall.”

Tennis followers love and hate his nerdy participant nicknames. Stan Wawrinka, the Swiss tank of a participant, is “Stanimal.” Carlos Alcaraz is “Escape from Alcaraz.” And on and on.

It’s a great life. Has been for some time.

Gilbert is similar as he ever was, Shriver mentioned. She and Gilbert first bonded on the 1988 Olympics, two sports activities nuts who gained medals whereas hopscotching from swimming to wrestling to trace and subject to absorb the competitors.

“He loved scouting,” Shriver mentioned. “Loved game plans.”

Last yr took an unconventional flip. For almost a decade, Gilbert had been working with junior gamers on non-public courts in California. Then the telephone rang with an odd request.

Zendaya, the actor and music star, had signed on to star in “Challengers,” an upcoming film a couple of skilled tennis love triangle.

Small downside: She had no thought the best way to play tennis. Could Gilbert educate her and her co-stars Josh O’Connor and Mike Faist the best way to play properly sufficient to not look ridiculous? Also, may he arrange and design the factors within the motion scenes?

Sure, why not, Gilbert mentioned. He and Zendaya began exhibiting up at Pepperdine University tennis matches to assist her perceive the sport. There had been three months of coaching in California, then 4 months of rehearsal and filming in Boston and New York.

When it was finished, Gilbert seemed round and noticed that his mates from tv had been teaching high professionals part-time. Darren Cahill was working with Jannik Sinner, the Italian ranked sixth on the planet. Shriver was working with Donna Vekic, the proficient veteran from Croatia.

Gilbert needed again in with a high American participant. He put the phrase out and commenced to get some presents, however he needed to verify it was with the best participant, a member of the elite whom he believed he may assist and who shared his starvation.

After Gauff misplaced within the first spherical at Wimbledon in July, one other disappointing Grand Slam end result for a participant who believes she is able to win the largest titles, he received a name from her staff. They needed him to talk along with her mother and father about sharing his been-there knowledge as an adviser alongside Gauff’s new and somewhat-inexperienced coach, Pere Riba.

American? Check.

Elite? Check.

Hungry? Triple test.

“A super kid,” he mentioned of Gauff on Saturday.

Gauff’s shortcomings had been hardly a thriller: a shaky forehand and serve in tight moments; a battle to maximise her prodigious strengths — her velocity and skill to cowl the courtroom, her health, her blazing backhand, a laserlike first serve.

Used the best manner, these instruments have gotten her far. Maybe Gilbert’s mind may get her over the road.

“He loved discussing matchups, how to get to people’s weaknesses,” mentioned Andy Murray, who labored with Gilbert earlier in his profession. “It was very focused on the strategy and finding ways to win matches.”

Gilbert and Gauff’s staff have stored quiet in regards to the particular methods he has helped her, however anybody who watches him and hears what he says from her field throughout matches can determine it out: Know what’s coming, and play to your strengths.

“Make it physical, Coco,” is a continuing chorus, a reminder that she will be able to chase down balls all evening lengthy if she desires to, taking the legs and the guts out of opponents.

Gilbert has little use for the statistics which have come into trend amongst many elite groups. He ignores the display screen within the teaching field that provides coaches real-time information.

“I trust my eyes,” he mentioned.

He has been making an attempt to introduce Gauff to his music, sending her hyperlinks to songs by Tom Petty, Bruce Springsteen and the Eagles. Gauff, a fan of City Girls — a Miami hip-hop duo that includes artists Yung Miami and JT — has but to share her ideas.

Still, in the meanwhile, she and her staff have each cause to belief his eyes, too. Gauff has gained two of her first three tournaments with him on the staff, and 14 of 15 matches, together with three on the U.S. Open.

Then there may be this: Gilbert started working with Agassi in March 1994, and Agassi gained the U.S. Open that September. Gilbert started working with Roddick in June 2003. Three months later, Roddick was the U.S. Open champion

They had been totally different gamers. Agassi, Gilbert mentioned, had a photographic reminiscence and an analytical thoughts that would take aside a match hours later, stroke by stroke, with whole recall. Roddick was so exuberant that Gilbert had roughly 15 seconds to ship any message earlier than his consideration went elsewhere.

His tackle Gauff? Kind of like Zendaya, he mentioned.

Both had been prodigies who started engaged on their craft and breaking by means of as younger kids. They’re across the similar top, about 5-foot-10. And Zendaya has the wingspan of somebody nearer to 6-4, he mentioned. Great athletic physique. If solely he had gotten to show her tennis when she was youthful.

They had been texting the opposite day, on Zendaya’s twenty seventh birthday. She advised him she was watching and was all in on Gauff. He mentioned he was, too. Just as he needed.