Mark Allen compiled the second maximum break of his career as he beat Si Jiahui in the first round of the Northern Ireland Open in Belfast.

The Antrim 35-year-old admitted he felt the nerves as he wrapped up the break, which completed a 4-1 win over his Chinese opponent.

Allen, whose only previous competitive maximum came at the 2016 UK Championship, told "It's right up there with the best moments of my career - to do it here means so much to me.

"I couldn't stop shaking on the black, I just had to let my arm go though and luckily it went in."

World champion Mark Selby fired two consecutive centuries to wrap up a 4-1 win over Mark Lloyd, while Judd Trump eased past Andrew Pagett by the same score.