Port Vale stun Sunderland, Southampton beat Fulham in FA Cup shocks
Sunderland have enjoyed an impressive first season back in the Premier League, but this was a dismal defeat for Regis Le Bris' side.
Ben Waine capitalised on poor marking to head the 28th minute winner, sending Port Vale into the FA Cup quarter-finals for the first time since 1954.
Jon Brady's side appear destined for relegation, but they beat second tier Bristol City in the fourth round and produced an even more remarkable performance to make a mockery of the 56-place gap between them and Sunderland.