Promotion hopefuls Livingston and Greenock Morton drew to allow Dundee United to gain ground on both in the Scottish Championship.

After a scoreless first half, Livi's Shaun Byrne was sent off following two bookings in quick succession.

Gary Oliver put Morton in front from close range with only two minutes of regulation time remaining.

But Jackson Longridge's 20-yard strike levelled matters deep into stoppage time.

Livi move to within 10 points of leaders St Mirren, but United, who beat Queen of the South, move above Morton into third and now trail second-placed Livi by seven points with three games in hand.