Brighton battled through the mud to see off a spirited effort from hosts Port Vale and seal their place in round five of the FA Cup
Port Vale live updates
Watch highlights of Port Vale's thrilling 3-2 win at Plymouth in the FA Cup Third Round Replay.
Police were on Saturday pelted with bottles and missiles after trouble broke out between football fans following a highly charged local derby.
Officers arrested 23 people when Port Vale hosted Wolves in Sky Bet League One.
Staffordshire Police said it was "confronted by a significant group of home fans" involved in "violent disorder" who had gone out of their way to target police lines.
A man has been arrested on suspicion of attempted murder after a hit-and-run incident involving football fans on their way to a match.
Two Port Vale fans were taken to hospital after they were hit by a car as the waited in a taxi rank outside Rochdale train station.