Gulbis serves a bagel to send Alexander Zverev packing — ATP Wimbledon

Gulbis serves a bagel to send Alexander Zverev packing — ATP Wimbledon

Zverev hit back by winning the next two sets 6-4, 7-5 to put himself in the driving seat to progress to the fourth round. In addition, Ernests has reached the fourth round at Wimbledon for the first time in his 11th appearance, becoming one of the players who needed to play more than 10 Wimbledons to book the place in the last 16 after Tommy Robredo, Jeremy Bates, Michael Llodra, Nicolas Mahut, Richey Reneberg and Marc Rosset.

"Yesterday I had pain during the whole three sets", said Zverev, whose last five matches at a grand slam have gone to five sets.

It was unclear if the 21-year-old was still struggling with the problem when he took to Court 1 against Gulbis. But then I thought, Well, if I don't feel well, it's going to be one set.

He will go into his match against qualifier Ernests Gulbis as the favourite, but Gulbis has already demonstrated a penchant for pulling off upsets at this year's Championships.

"Today in the warmup I was actually maybe thinking about it, not to play at all".

"Today I was returning much better, as I said, because it was brighter". "And I actually thought I didn't play that bad - I just started to feel very exhausted".

Darkness descended at just the right time as the German came back to win 6-4 5-7 6-7 (0/7) 6-1 6-2, though he thought about withdrawing due to an illness.

After splitting the first two sets Gulbis served for the third at 5-3.

Gulbis said: 'I think he's a future Grand Slam victor. I felt my mind go, you know, and move on. "I realised that he was getting exhausted, yes, so".

Only three of the top 10 women's seeds remain in the Wimbledon running after Keys succumbed to Rodina 7-5, 5-7, 6-4, where the 23-year-old lost a 5-2 lead in the first set.

"I'm very happy (to make the last 16 for the first time), long time I've been chasing for that", said Monfils, who will next face South African Kevin Anderson.

Despite being widely-tipped to be a Grand Slam threat, it was another let-down for Zverev whose run to the quarterfinals at Roland Garros last month remains his best performance at the Majors.

Anderson earlier became the first man through to the fourth round after beating Philipp Kohlschreiber 6-3 7-5 7-5.

Estonia's top tennis player Anett Kontaveit (WTA 27) won against US tennis player Jennifer Brady (WTA 74) on Thursday, advancing to the third round of the Wimbledon tennis tournament.