Referee Chris Kavanagh will return to Premier League action after his FA Cup howler recently - but his assistant at Villa Park, Nick Greenhalgh, has been dropped down to Championship duty. Kavanagh took charge of Newcastle's 3-1 win over Aston Villa , but the game included a number of high-profile errors. Tammy Abraham scored a goal which was clearly offside, but Greenhalgh failed to raise his flag and Lucas Digne dodged a red card for a shocking challenge on Jacob Murphy. The worst blunder