A brawl broke out between players and staff at an EFL Championship match between Swansea City and Preston North End in Swansea, Wales, on April 19.Video by Lee Sullivan shows players and staff pushing each other on the sidelines at Swansea.com Stadium.Swansea manager Russell Martin said the mass brawl was not “pretty for anyone”, according to a report by BBC Sport.Preston boss Ryan Lowe and Swansea midfielder Joe Allen were given red cards in the 90th minute, BBC Sport said. The dismissals followed a prolonged touchline clash involving players and staff from both clubs.The Swans beat Preston 4-2. Credit: Lee Sullivan via Storyful