Just a week after knee surgery, Novak Djokovic is back in the gym

A sight for sore eyes: Just a week after undergoing surgery for a meniscus tear in his right knee, Novak Djokovic is back in the gym.

The 24-time Grand Slam champion, who relinquished his perch as world No. 1 to Jannik Sinner after the events of Roland Garros, shared the positive update with fans and followers on Friday via a video posted to his Instagram account. In the clip, Djokovic can be seen pedaling on a stationary bike, doing footwork drills, balancing on a half-round ball, and completing other exercise circuits with resistance bands.

"Progress," he wrote simply alongside it.

Djokovic exacerbated an existing knee problem with a heroic effort at the clay-court major earlier this month, where he played nearly nine hours of tennis in back-to-back epic five-setters in Paris. In the third round, came from behind to beat Italy's Lorenzo Musetti in a match that ended at 3:06 a.m. local time, the latest finish in Roland Garros history, and less than two days later, was back on court against Argentina's Francisco Cerundolo.

He won that one, too, from two-sets-to-one down in more than four hours, but jarred his knee in the second set. He got through the match thanks to adrenaline and painkillers, he said, but eventually was forced to withdraw from the tournament ahead of his scheduled quarterfinal against Casper Ruud.

Djokovic's return to training wasn't only something that fans were happy to see. His fellow players were pumped, too.

"Let's go," commented Stan Wawrinka, with a flexing bicep emoji, as Donna Vekic too cheered Djokovic on.

The Serb has yet to provide an update on his return to competition, though media reports in the aftermath of Roland Garros speculated he could miss the grass-court Grand Slam at Wimbledon, which begins on July 1.

Djokovic had previously vowed in a prior social media update that he'd be back on court "as soon as possible."