All three Irish players in action on Tuesday were beaten at the Scottish Open, as Ken Doherty, Fergal O'Brien and Aaron Hill were eliminated from the tournament in the first round.
O'Brien got closest to going through, pushing Lee Walker to a decider in a 4-3 defeat. Doherty lost 4-1 to Chang Bingyu while Hill was beaten 4-2 by Peter Devlin.
Meanwhile Judd Trump put Sunday's UK Championship final defeat behind him by beating Alexander Ursenbacher 4-1.
Trump, who lost 10-9 to Neil Robertson in the early hours of Monday morning in a marathon UK final, made breaks of 66, 52, 69 and 81 on his way to a comfortable win against his Swiss opponent.
The world number one will now play Mark King, who whitewashed Chen Zifan 4-0, making breaks of 87, 73, 54 and 50 as the Chinese player failed to register a single point.
Ronnie O’Sullivan hit back from 2-0 down to beat Allan Taylor 4-2, clicking into gear in the third frame to produce scores of 60, 72, 127 and 56 to book a second-round tie against Chang Bingyu.
Two-time winner John Higgins also fought back to beat Iranian Soheil Vahedi 4-3 having trailed 3-1.
Shaun Murphy, Ali Carter, Ding Junhui and Stuart Bingham were among those to progress to the second round.