A number of snooker’s elite crashed out of the Northern Ireland Open on an eventful third day – which also a saw a 147 maximum made.

It was another impressive day for Judd Trump who complied his fifth career maximum in a 4-0 win over China teenager Gao Yang – as the world number one edged another step closer to becoming the first player since Stephen Hendry in 1996 to win a ranking event for three years on the spin.

World number 2 Ronnie O’Sullivan also eased through to the third round beating Elliott Slessor 4-1 and will next play Matthew Stevens – the man who beat O’Sullivan in the English Open last month.

But for other big names – it was a day to forget.

World number four Mark Selby suffered a shock 4-0 loss to Germany’s Lukas Kleckers in one of the shock results of the season so far.

Kleckers, ranked 117 in the world, earned the win of his career so far as breaks of 63, 88, 52 and 79 saw him through to the third round.

And Neil Robertson’s bad run of form continued after he fell to a second round loss to Ben Woollaston. The Australian also failed to qualify for the German Masters last week.

Three times world champion Mark Williams also suffered a surprise 4-2 defeat to fellow Welshman Dominic Dale.

Masters winner Stuart Bingham suffered a surprise 4-2 defeat to 17-year-old Zhao Jianbo.