It has been a tough few months for Wilson after the cue he used to win the world title in May 2024 was damaged while being refurbished at the start of this season, with a six-inch piece being snapped off the end.
Wilson called the incident “a freak accident totally out of my control” and one that had “ruined the cue I was conquering the world with”.
Following his first-round UK loss to Slessor, Wilson said: “I’m just very lost. You were very close to seeing someone have a mental breakdown out there.
“I wanted the world to swallow me up as soon as I missed the pink in the first frame. It’s been a nightmare. I gave it my all – but I just knew I couldn’t win.”
Since then, he has begun using a new cue, but only reached round three at the Scottish Open, losing to world number 68 Chang Bingyu.
Wilson, 34, did also play in the Championship League earlier this month – and looked back to his best at Alexandra Palace in his first match in a Triple Crown event since that loss to Slessor.
“It has been a really tough time so I thank you for all your love you have given me, it really lifted me,” Wilson told the London crowd after Tuesday’s match.
“This venue can bring the best out of you. I still have a lot of time in this game so hopefully I can conquer this venue for a long time.”
On his cue woes at the UK Championship, Wilson added: “I had to put a ferrule and a tip on the cue on the day of my first-round match and it got to boiling point when I felt I had let people down.
“I had a bit of a hissy fit at the end of that game. I’m over that now and I’ve got a cue that I’ve been playing with since the Scottish Open and I’m very happy with it.”
Wilson, who will meet either Australia’s Neil Robertson or England’s Chris Wakelin in the next round, added: “When you go out there and can’t trust what you’re using, you have no chance.
“I think this cue is better because there’s a bit more power, a bit more whip and it’s about learning how to control that – I’ve had a month to get used to it, I’ve had to modify my cue action.”
Si, 23, played his part in an entertaining game with a break of 97 in frame three, although he was unable to join compatriots Wu Yize, Xiao Guodong and Zhao Xintong in the last eight.