Liverpool have complained to referees' chiefs about Virgil van Dijk's disallowed goal at Manchester City on Sunday. The Premier League champions were well beaten and Arne Slot did not blame the decision for his side's defeat. But he was left wondering what might have been if his captain's header, which would have made the game 1-1, was allowed to stand. Instead it was chalked off after a VAR review due to Andrew Robertson, the Liverpool left back, being on the line and judged to be interfering with City goalkeeper Gianluigi Donnarumma. The Scotsman was offside and ducked out of the way of Van Dijk's effort. Law 11 of the Football Association handbook states that a player in an offside position is 'only penalised on becoming involved in active play by: interfering with play by playing or touching a ball passed or touched by a team-mate…' It continues: '...or interfering with an opponent by: preventing an opponent from playing or being able to play the ball by clearly obstructing the opp...