Novak Djokovic got his 2022 season off to the best possible start as he overpowered impressive Italian teen Lorenzo Musetti in Dubai.
Djokovic had planned to start his season at the Australian Open, but he was deported due to a row over vaccination.
But entrants to Dubai do not need to be vaccinated, so the 34-year-old was able to return to a tournament he has won five times.
That allowed him to get his season underway in impressive fashion, easing to a 6-3, 6-3 win.
Despite his enforced absence, Djokovic showed he has lost none of his speed around the court with a stunning drop shot at the net on his way to breaking for 3-1 in the opening set.
Musetti, a rising star who took two sets off Djokovic at last year's French Open, forced three break points in the next game but the Serbian repelled the lot.
Djokovic regularly gave his young opponent a thumbs-up for some of his exciting stroke making.
But the 20-time grand slam champion, well supported by a packed crowd, kept his focus to break early in the second on his way to an ultimately-comfortable win in an hour and 13 minutes.
After giving his traditional 'heart throwing' celebration to all four grandstands, Djokovic said on court: "I couldn't ask for a better reception.
"It's been a while since I played and I couldn't think of a better place to kickstart the season. Thank you for the reception and welcoming me on court the way you did.
"All in all it's a straight-sets win so I have to be satisfied with my tennis, especially after not playing for two and a half months.
"Of course there were moments when I made unforced errors but it's normal to expect that in your first match in a while.
"But I'm glad I managed to finish the job off in straight sets against a very talented player who possesses a lot of quality. All in all, a very pleasant experience."
At his press conference afterwards, Djokovic admitted that, as things stand, he will be unable to enter next month's prestigious Indian Wells Masters.
"As of today, not. I can't go, I can't enter the United States," he said.
"As of today I'm not able to play. But let's see what happens. I mean, maybe things change in the next few weeks."
Former world number one Andy Murray was asked about Djokovic's situation in his press conference following his win over Christopher O'Connell.
Murray said: "Like I said at the time, I don't agree with his decision. I think it would be a lot easier for him, obviously, if he was to get vaccinated.
"But I also didn't like seeing him in the situation that he was in Australia as someone that I respect and have known since I was a child. I didn't like seeing that.
"There is consequences to the decisions he's made just now. He obviously has to accept that. But I don't think it's great for tennis if our best player is not competing in the major events."