China’s Cao Yupeng reached his first ranking event final after upsetting Judd Trump 6-4 at the Scottish Open.
The world number 67, who made a maximum 147 break in his first-round win, took the first two frames and led 3-1 at the interval after an 88 break.
Trump won a tense fifth frame on the black and levelled at 3-3 but Yupeng won the next two and held his nerve after a 53 break saw Trump make it 5-4.
Yupeng, 27, will play John Higgins or Neil Robertson in Sunday’s final.
They face each other in the second semi-final from 19:00 GMT on Saturday.
Yupeng’s previous best effort at a ranking event saw him each the semi-finals of the European Masters in October, when he suffered a 6-1 defeat by world number three Trump.