Mark Williams created Crucible history on his way to reaching the World Snooker Championship final. The Welshman dumped World No1 Judd Trump 17-14 in the Saturday Evening session to set up a showdown with Zhao Xintong. The 50-year-old - who becomes the oldest finalist in Crucible history - is bidding to become world champion for a fourth time with four sessions on Sunday and Monday standing between him and his journey to glory. After his semi-final win, Williams revealed the classy message Trump told him during a longer than usual embrace. He told BBC Two : "When I shook Judd's hand at the end, he said some lovely words. "He said 'it's unbelievable that you're still going at your age and all the best, I hope you win it'." On reaching another final, he added: "I was starting to twitch towards the end, I'm not going to lie. "I nearly missed the black in the last frame - I did feel a bit of tension on the back arm. "I'm never normally nervous at any stage but I was in that break. "I can't believe I'm in another final - I don't know how I'm doing to be honest. "I came here with not much form, I lost in the first round in the past few tournaments, but I wasn't really too concerned. "I worked in the club from half past eight every morning for four or five hours, me and Lee [Walker, Williams' coach], and we've been putting the hours in just to try to get a bit of form, trying with contacts and without contacts. "I really struggled with my eyes in the past couple of tournaments and I've tried everything - contacts, varifocals. I left it for Lee to decide because he knows if I'm playing alright and how I'm hitting them, and he said he thought I was better off going without them. "Lens replacement was booked for 12 June - deposit paid - but I'm going to have to have a think. I want my deposit back!"