PARIS, France (AFP) — Novak Djokovic returned to the court just five days after his historic US Open title triumph to lead Serbia into the Davis Cup quarterfinals on Friday, while Andy Murray helped Britain edge past Switzerland.

World No. 1 Djokovic eased to a 6-3, 6-4 success against Alejandro Davidovich Fokina to give his country an unassailable 2-0 lead in Valencia after Laslo Djere's earlier 6-4, 6-4 win over Albert Ramos-Vinolas.

It was Djokovic's first appearance in the team competition since Serbia's semifinal loss to Croatia in 2021.

The 36-year-old won a record-equaling 24th Grand Slam title last weekend with a straight-sets triumph against Daniil Medvedev in the US Open final.

"I'm on cloud nine with everything that has happened recently on the tennis court," Djokovic said.

"Playing for Serbia, for my country, is something completely different."

"It's a huge responsibility and pressure, but it's also a privilege and an honor."

Djokovic took the opening set against world No. 25 Davidovich Fokina with a single break in the eighth game, before battling back from 4-1 down in the second set with a run of five straight games.

Serbia has now secured a spot in the knock-out phase which will be played in Malaga in November, after also seeing off South Korea 3-0 on Tuesday, while Spain is out of the competition.

"It can create some pressure," said Djere on having Djokovic back in the team.

"But I try not to put any pressure on myself and use it as motivation. I think I managed quite good in doing so."

Djokovic played a starring role when Serbia won their only previous Davis Cup title in 2010.

Serbia wrapped up a 3-0 victory in the Group C tie as Nikola Cacic and Miomir Kecmanovic beat Davidovich Fokina and Marcel Granollers 6-4, 7-6 (15/13).