NOVAK Djokovic has played down suggestions he can win Wimbledon despite looking ominously good at Queen's.

The former world No.1 eased into the quarter-finals by dispatching Grigor Dimitrov 6-4, 6-1 in the Fever-Tree Championships second round.

It has been a difficult two years for Djokovic after winning the last of his 12 grand slams at the French Open as he has suffered from injury and motivation issues.

But he is looking good on the grass, although he is not getting carried away ahead of SW19 next month.

"Let's not get too ahead of ourselves too early," he said.

"I had two great matches so far, and I'll just keep my focus here. I'm definitely not one of the favourites in Wimbledon, so I'll just try to keep it humble.

"It's quite open, I mean, Roger [Federer] is a clear favourite, without a doubt.

"[Rafael] Nadal maybe hasn't played that well in Wimbledon the last couple of years up to his standards, but he's won it several times, played finals several times. He's definitely rightly one of the candidates to win the title.

"Dimitrov, obviously if he plays on a high level, he can really beat anybody on this surface. I mean, guys like that, [Sam] Querrey, [Marin] Cilic. Of course Cilic."

Djokovic also highlighted Andy Murray as a potential threat, even though he is only one game into his comeback after an 11-month absence and has not even committed to playing at Wimbledon.

He said: "Andy and myself, you know, if we play well. Obviously we dropped in the rankings, but Andy played really well against Nick [Kyrgios] here first round.

"He has home support and a lot of things can go in a right direction for him as long as he's healthy.

"He's always tough to play against on grass courts, especially in Wimbledon."

Djokovic will face Adrian Mannarino in the last eight after he won the all-French battle with Julien Benneteau 7-6 (7/4), 6-3.

Kyrgios followed up that victory over Murray, meanwhile, by claiming his second successive British scalp when he defeated British No.1 Kyle Edmund in the second round at Queen's.

The Yorkshireman is not renowned for his results on the green stuff and only won his first Wimbledon main draw match last year.

But an impressive overall improvement in his game – which saw him get to the Australian Open semi-final in January – is beginning to show on the grass too.

"I have been playing pretty good," the 23-year-old said despite losing 7-6, (7/3) 6-7, (5/7) 6-3.

"I think I'm improving on grass. My serve is better. I'm able to hold better in the service games.

"And to be a good grass court player you really have to serve well and return well. And I think I'm improving as a general rule.

"This year has been good for me. Mostly I feel my game is improving on the court, so I think it helps going into the grass [season]."