John Higgins trails Thepchaiya Un-Nooh in World Championship first round after eventful session of doubles and centuries

John Higgins will require a second session comeback in order to reach the next round of the World Championship after Thepchaiya Un-Nooh impressed when taking a 5-4 lead on Tuesday afternoon. Un-Nooh, ranked 53 in the world, is attempting to make the second round of the World Championship for the first time in what is his fourth appearance.

Ad/> And the Thai 37-year-old has given himself every opportunity, closing out the first session with a gutsy 114 to take a one-frame lead over Higgins, who is chasing a fifth world title and first since 2011. /> World Championship'Best doubler in the business' — Higgins hits stunner at World Championship14 MINUTES AGO The pair resume on Wednesday morning from 10am, with the winner set to face Luca Brecel or Noppon Saengkham in the second round.

Both players missed long reds as they shared the opening two frames, Higgins levelling up at 1-1 with a fine double on the pink to finish. Un-Nooh went ahead for a second time with a break of 80, and though he then sunk the first red of the fourth frame, he missed the black when looking to open up the pack.

Robertson lives up to tournament favourite tag with win over Hugill Williams crushes White to reach second round World Snooker Championship: Order of play, schedule and results from the Crucible That gifted Higgins a big opportunity, and he duly delivered – with another superb double at 59-1 – to complete one of the biggest breaks of the opening round, a 128. After the mid-session interval, Un-Nooh moved in front when taking two scrappy frames in succession, winning the key safety battles and capitalising on of out-of-sorts Higgins.