Another gear: Rafael Nadal of Spain cruised through the opening round. Credit:Getty Images "I absolutely can't imagine playing him on clay. I reckon if the French Open was tomorrow and I drew him first round after playing him just then, I'd be probably a be a little bit intimidated," Millman said. "I know it's a different surface, but that's not normal what he did at the French Open. "If you look at his last 24 sets - because I've added to that - it's not normal, the scorelines." Millman had pegged Nadal alongside the similarly resurgent Roger Federer as the two title favourites this fortnight and nothing he experienced on Monday has changed his mind.

Outclassed: John Millman of Australia. Credit:Getty Images "I've been lucky enough to have played the big four now," the Queenslander said. "I've played Andy (Murray) and 'Rog' (and Novak Djokovic). For me, though, how it matched up, Rafa's a whole new animal. "He has the ability to shrink the court with everything. You feel like when you're serving - which I probably didn't do that well - that you have to hit the tiniest spot. "Off the ground, you have to hit the tiniest spot. Relentless abuse."

Millman had pushed two-time Roland Garros semi-finalist Dominic Thiem to five sets at last year's US Open, but never looked like becoming the fifth straight player ranked outside the top 100 to send Nadal packing from Wimbledon. Celebrating his 50th match at the spiritual home of tennis, fourth-seeded Nadal at one point had Millman sprawled on the court, face-planted into the turf. "I am happy that I am here playing again in Wimbledon and with positive feelings in terms of health. That's the most important thing," Nadal said after setting up a second-round clash on Wednesday with fellow left-hander Donald Young. "I played with passion. I played with determination on what I wanted. "I could do things better, yes, but not too many."

Earlier, Andy Murray came through the first test of his dodgy right hip with flying colours to reach the second round. The Scot continued to limp between points, as he had since resuming practice on Friday, but when it mattered his movement was just one of the things he did well in a 6-1 6-4 6-2 victory over lucky loser Alexander Bublik. The build-up to the defence of Murray's title has been dominated by concerns over his form and fitness after he was forced to miss two days of training and had lost in the first round to Australia's Jordan Thompson at Queen's Club. But the Murray who lost so woefully to Australia's Jordan Thompson in the opening round at Queen's Club. All that held up Murray were two brief rain delays, but he did not allow his momentum to be disrupted and eased to victory in an hour and 44 minutes, setting up a second-round clash with another unorthodox player in Germany's Dustin Brown.

"I was a bit nervous this morning. I hadn't been able to do as much as I would have liked in the build-up, didn't know the guy I was playing," Murray said. "Obviously, first match at a slam, there's always a few extra nerves. Once I got out there and got the early break, saved a few break points in my first service game, I felt good. "I moved well. So for a first match, considering how I was feeling five, six days ago, it was really positive." The win sets Murray up for a showdown with Brown and the serve-volleyer is an altogether different prospect for the world No.1 and he knows it. "I'll work a bit on my passing shots and lobs because it will be a different match against Dustin Brown," Murray added.

One man Murray won't have to worry about facing is his French Open conqueror Stan Wawrinka. The Swiss fifth seed was sent packing by rising Russian Daniil Medvedev in four sets 6-4 3-6 6-4 6-1 in an opening day upset, which added to the three-time slam winner's miserable record at the All England Club. The loss is the sixth time Wawrinka has exited the tournament in the first round but the first time since 2013 it has happened to him. Wawrinka was not the only big-name casualty on the day - he joined Australia's Nick Kyrgios who was severely hampered by his chronic hip injury in exiting the tournament. Kyrgios struggled to move in any direction against Frenchman Pierre-Hugues Herbert and cut a despondent figure throughout his match as a result, before ultimately retiring hurt when down 6-3 6-4.

If Murray was impressive so were a quartet of other big names. Ninth-seeded Japanese star Kei Nishikori advanced over Italy's Marco Cecchinato 6-2 6-2 6-0. The 12th seed, Frances Jo-Wilfried Tsonga also cruised into the second round with a 6-3 6-2 6-2 rout of outclassed Brit Cameron Norrie. And Croatian seventh seed Marin Cilic defeated tricky German Philipp Kohlschreiber 6-4 6-2 6-3. AAP