Ronnie is killing this match early - he's putting everything into it and has been patient with his shot selection.

At 4-0 there's probably no way back for Jackson Page already in this match.

Ronnie O'Sullivan runs out of position on the colours which means there's no century break but a polished run of 81 puts him firmly in control of this first-round match as the players head out for the mid-session interval.

Image source, Getty Images

It got a bit scrappy but Mark Allen has his first frame of the afternoon and is now only two away from victory over Robbie Williams.

Jackson Page is not being tight enough with his safety. One such shot barely makes it back to baulk and leaves Ronnie O'Sullivan a long red that he fires in.

That's the start of another half-century break and 4-0 is incoming.

The long pots are not the problem for Jackson Page - he's banged plenty in already.

It's more the mid-distance shots or delicate cuts that are proving his undoing. He's in again early in frame four - but once again he can only make single figures.

Joe

Image source, BBC Sport

Much like his heir apparent Stephen Hendry would do in the following decade, Steve Davis absolutely bossed the snooker scene in the 1980s.

In an era where the World Championship final regularly attracted record viewership figures, Davis was the sport's undisputed number one, winning six Crucible crowns and losing in two other finals (yes, including that one against Dennis Taylor).

Perhaps just as impressive, after a 1990s slump during Hendry's dominance, was a late career renaissance that saw him remain a top-16 player into his 50s and reach a Crucible quarter-final aged 52 in 2010.

Is Davis the greatest of all time? Hit the thumbs up button if 'The Nugget' is your man.

Speaking of Steve, time for the next candidate in our GOAT vote...

Scroll back through the previous entries to see the first two - Ronnie O'Sullivan and Stephen Hendry.

Jackson has got many years to come back here.

But it's tough at the best of times to play well here. Even if you think you're prepared for it, when you get out there it's a shock to the system.

It's completely different to any other tournament, there's no doubt about it.

As soon as you walk down those steps, you get the sense of history. Jackson is not only playing the greatest player in the history of the game, he's playing the conditions, he's playing all that history and the crowd as well.

That's very difficult - if you don't settle down very early, you're in big, big trouble.

Six reds and six blacks for Mark Allen but a potential maximum 147 break comes unstuck as he misjudges a shot after being disturbed by a noise in the background. He won't be happy although he's still favourite for this frame.

This match could very quickly run away from Jackson Page.

The world number one clears up with a 56 break to extend his advantage.

Image source, BBC Sport

Ronnie O'Sullivan gave away 16 penalty points from this position - twice hitting the pink with escape attempts and then missing the balls completely with the other.

But he's since pinged in a long red and this frame is going the way of the previous two.

Image source, BBC Sport

The man who, for many, revolutionised snooker - pioneering a more attacking approach and dominating the sport for an entire decade as a result.

Stephen Hendry was the sport's equivalent of Manchester United during the 1990s, mopping up trophy after trophy with a will to win perhaps identical to that of compatriot Sir Alex Ferguson.

While most of his records may have been taken - chiefly by O'Sullivan - Hendry's influence on the game is undeniable and his run of six successive World titles between 1992 and 1996 will surely never be matched.

Is he the game's greatest exponent? Hit the thumbs up option if you think so.

The 'Rocket' missed the next red, though, and while Page cannot take the opportunity presented, he's got his opponent in a very nasty snooker.

Another Jackson Page misjudgement, this time an errant escape from a snooker, has left Ronnie O'Sullivan in again.

He reaches 45 with little trouble but runs out of position on the black - so he switches hands, and cuts it in with his left hand while bridging over two reds.

Shouldn't be astonished by anything he does to be honest - but that's remarkable. Imagine playing this shot with your 'wrong' hand.

Image source, BBC Sport

Mark Allen will have been hoping to wrap his match up fairly swiftly but he's lost the opening two frames and Robbie Williams is now only three behind.

James Gulleford: I’ve been lucky enough to have seen cricket at Lord's, tennis on Centre Court at Wimbledon and snooker at the Crucible. From my experience there is simply no atmosphere that can compare to the Crucible Theatre, so we cannot lose it!

Rich

Image source, BBC Sport

Right, a reminder we'll be running down our list of contenders for the title of snooker GOAT - after the 'Rocket' claimed he didn't class himself as such.

Regardless of what he says, however, if this was a game of Top Trumps, well this would be the card you'd want.

In only one category can O'Sullivan be matched - his seven Crucible crowns equalled by Stephen Hendry.

The Rocket's longevity is unparalleled too - 30 years on from his first major title, the UK Championship in 1993, he lifted the same trophy again this year.

Reckon Ronnie's the GOAT? Hit the thumbs up. If not, we've got five more candidates to bring you.