Leeds have confirmed their Premier League survival at the expense of Burnley who fell 2-1 to Newcastle as Jesse Marsch's side managed the same score with a win at Brentford.
Marsch's men leapfrogged the Clarets in a dramatic final day, but almost lost their advantage as Brentford piled on late pressure.
Sergi Canos was sent off for a second yellow as he removed his shirt after a 78th minute equaliser, following Raphinha's opener from the penalty spot.
But Harrison then caused euphoria at the Brentford Community Stadium with his stoppage time long-range strike leaving Marsch a pile of joy on the touchline.
It was sheer misery at Turf Moor though, as two goals from Callum Wilson ended Mike Jackson's recovery job at Burnley, despite Maxwell Cornet's consolation hinting at a late turnaround.
More to follow…