It has been all too easy for Novak Djokovic at Wimbledon so far this year and the world number one was hoping to continue that trend against Jeremy Chardy today.

Djokovic did not drop a game on his serve across two matches at the All England Club, highlighting just why so many are backing him to win a seventh grand slam title next Sunday.

Andy Murray may have something to say about that - the second seed saw off Tommy Robredo yesterday - but in the meantime, Djokovic was today keen to keep on doing what he has been.

"I love playing on the grass," he said.

"My game is based on the baseline but this surface makes me come to the net and that makes me come to the net. That makes me be aggressive and I really like that."

Chardy is the 28th seed but has never been past the fourth round of a slam and was expected to cause Djokovic few problems.

It seemed unlikely the Australian Open champion would get ruffled, for he has been relaxing away from the court at a local Buddhist centre.

"It's very calm and quiet," Djokovic said. "There are so many beautiful parks in London as well where I can visit. There is so much pressure and stress around, so you need a place where you can go and switch off."

The way the draw is set up suggests there will be a Djokovic-Murray final, but other players have been doing their best to get their names into the mix.

The big-serving Pole, Jerzy Janowicz, took up the baton with a three-set demolition of Nicolas Almagro yesterday, while the fourth-seeded David Ferrer continues to move through the rounds, the Spaniard seeing off Roberto Bautista Agut.

Almagro had been the highest-ranked player in Murray's half of the draw apart from the Scot before yesterday, but that status now rests with the 20th seed Mikhail Youzhny, who was unable to start his match with Viktor Troicki because of the weather which has played havoc with the order of play. They try again today.

Elsewhere yesterday Grigor Dimitrov slipped out as he lost to Grega Zemlja - even watching girlfriend Maria Sharapova could not bring him good luck - while Roger Federer's conqueror, Sergiy Stakhovsky, was unable to produce the goods against Jurgen Melzer.

Alex Dolgopolov took just three sets to oust Santiago Giraldo, Tommy Haas continued to defy his 35 years as he whitewashed Jimmy Wang and Dustin Brown's colourful run ended at the hands of Adrian Mannarino.

Elsewhere, David Ferrer had his work cut out with a crowd-pleasing performance from Alexandr Dolgopolov but the Spaniard whose seeding caused such a pre-tournament fuss tonight continued his Wimbledon run.

Ukrainian Dolgopolov won the hearts of the Court One crowd yet Ferrer took the contest after five sets, edging it 6-7 (6/8) 7-6 (7/2) 2-6 6-1 6-2 to earn a shot at unseeded Croatian Ivan Dodig on Monday.

That will be for the prize of a quarter-final place, and Ferrer is steadily going about proving he is a justified fourth seed, having been controversially positioned there by an automated system that takes no account of grass-court results further back than two years.

Many thought two-time champion Rafael Nadal ought to have been placed above Ferrer, but a look at which of the two star Spaniards is left standing in London tells its own story.

Dolgopolov, who plays an unorthodox, highly inventive game, was going for ambitious shots and making many of them, however he could not sustain the form that took him into a two-sets-to-one lead over the entire match and Ferrer's quality shone through in the end.

Eighth seed Juan Martin Del Potro suffered an injury scare after moving into the last 16 with a straight sets win against Slovenia's Grega Zemlja.

Del Potro fell awkwardly chasing down a drop shot in the third set, receiving treatment and taking a medical timeout before wrapping up a 7-5 7-6(3) 6-0 win.

"I will see the doctor after here, because I was going for the dropshot and I twisted my ankle," he told reporters.

"I hyper-extended my knee, as well. It was really painful. I was a little scared at that moment.

"I finish the match very quickly. Now I start to feel something in my knee and my ankle, as well. I will check with the doctor very soon."

Del Potro, who equalled his best performance by reaching the fourth round, will now face Italian Andreas Seppi.