Premier League referees' chief Howard Webb says it was "not unreasonable" for Virgil van Dijk's goal to be disallowed for offside against Manchester City on Sunday. Van Dijk thought he had equalised for Liverpool in the 38th minute, but referee Chris Kavanagh and his assistant Stuart Burt decided Andrew Robertson had committed an offside offence by ducking under the flight of the ball, which had impacted goalkeeper Gianluiga Donnarumma. The Video Assistant Referee, Michael Oliver, checked the