Despite trailing 20-12 at the break, Kevin Foote's side took full advantage of Seb Kelly's brain-fade headbutt to dismantle 14-man England in a thrilling nine-goal second-half blitz.

England flanker Seb Kelly is sent off for a horror headbutt in the under-20 world championship semi-final against South Africa.

Despite trailing 20-12 at the break, Kevin Foote's side took full advantage of Seb Kelly's brain-fade headbutt to dismantle 14-man England in a thrilling nine-goal second-half…