LONDON, (Reuters) – “Nothing like this will ever happen again – ever,” panted John Isner after he and Nicolas Mahut rewrote every record in the book with a 10-hour epic at Wimbledon that left even Roger Federer agog with admiration.

In the most mind-boggling encounter ever witnessed on a tennis court, or maybe even in the sporting world, Isner and Mahut sent statisticians scrambling and caused the scoreboard to  malfunction as they fought toe-to-toe for 10 hours in the  longest ever tennis match.

Incredibly as the sun set over Court 18, they staggered out of the All England Club at 2110 local time with their first-round match still undecided and the fifth set locked at 59-all.

The battle started on Tuesday, lasted all day yesterday,  will hopefully conclude today and will live long in the  memory of those lucky enough to witness the freak, surreal stalemate.

“Seriously… doesn’t anyone have to pee? Umpires included?”  Andy Roddick Tweeted as he watched the final set drag on for  seven hours and six minutes.

The fifth set alone eclipsed the record for the longest ever  completed match at six hours and 33 minutes.

It was meant to be a day when Federer, who had a narrow  escape in the first round, was supposed to prove that he is still the undisputed king of Wimbledon, but again he failed to convince.

He huffed and puffed his way into the third round by beating  a challenger who goes by the nickname of ‘Bozo’.

Qualifier Ilija Bozoljac is more well known in Serbia for  his exploits in reality show Big Brother than his tennis prowess  but he once again raised question marks about Federer’s chances  of landing a record equalling seventh men’s crown before  slipping to a 6-3 6-7 6-4 7-6 defeat.

With England brought to a standstill as the nation beat  Slovenia to reach the knockout stages of the World Cup in South  Africa, Roddick playfully kicked a ball into the delighted  Centre Court crowd after a 4-6 6-4 6-1 7-6 win over in-form  Frenchman Michael Llodra.

Fellow American Venus Williams joined him in round three after  blasting Russia’s Ekaterina Makarova into orbit 6-0 6-4.

Kim Clijsters, Justine Henin and third seed Novak Djokovic  all stifled their opponents in double quick time and former  champion Lleyton Hewitt chalked up a century of grasscourt wins  after Evgeny Korolev retired with a shoulder injury.

Amid the clamour of the Court 18 epic, it went almost  unnoticed that Russian seventh seed Nikolay Davydenko went out in four sets to German Daniel Brands.

Federer, Roddick, Williams, Henin, Clijsters, Hewitt and  Djokovic own 36 singles grand slam trophies between them but  their exploits on Day Three of the grasscourt championships were  eclipsed by two gunslingers battling it out on a court that  seats only 782 fans.

“I love this. I know they’re maybe not loving this, but I  guess this is unheard of in our game,” said Federer, who had  began his match when Isner and Mahut were tied at 11-all in the  fifth set and still found the two at it when he walked off Court  One almost three hours later.

“John is barely moving anymore but he’s still able to  produce good serves when he has to. It’s so impressive to see. I  was watching this. I don’t know if I was crying or laughing. It  was too much.”

It certainly was no laughing matter for the two protagonists  who simply could not find a way to send their opponent home. In  fact, Isner could have flown home to Florida in the time it took  them to contest the 118 games so far in the final set.

As a sea of fans, officials and fellow players crammed in  and jostled for position on the terrace overlooking Court 18 —  even the courtside scoreboard could not keep up with Mahut and  Isner’s antics as it got stuck with the score at 47-47.

A printed piece of paper will show that Isner belted down a  record 98 aces, and counting, as both players eclipsed the  previous record of 78 by Ivo Karlovic.

But those numbers will do little to underline the sheer  guts, steely determination and human spirit shown by both.

As darkness descended over southwest London, and the score  stood at 58-all, Mahut’s racket went flying out of his hand when  he dived after an Isner volley and ended up getting up close and  personal with the grass as he lay sprawled face down on the  ground.

Even a weary Isner, who looked as if he could barely put one  foot in front of the other in between points, mustered the  energy to applaud Mahut’s effort.

Seconds later Isner was gift-wrapped a fourth match point at  59-58 when Mahut double faulted. But for those who thought the  end was in sight, it proved to be a false dawn as the Frenchman  fired down his 95th ace.

Having ensured he had stretched the match into a third day  — it had been suspended at two sets apiece on Tuesday — Mahut  went up to the umpire and said enough was enough.

The fans were eager to see more but their chants of “We want  more, we want more” were ignored as the supervisor stepped on  court and signalled with his hands that it was over for the day.