World number one Judd Trump won five frames in a row as he fought back from 3-1 down to beat three-time UK champion Neil Robertson 6-3 and move into the last 16 in York.
Australian Robertson had a glorious chance to move 4-1 ahead but missed the penultimate ball and that proved to be the turning point in the match.
Trump then made breaks of 73, 126 and 67 to move 5-3 ahead, and sealed the ninth frame to set up a tie with three-time champion John Higgins.
Robertson, 18th in the world, had to come through two rounds of qualifying to get to York and this was one of the most eagerly awaited matches of the first round.
More to follow.