Linfield suffer a third straight league defeat for the first time since 2002 as Glenavon win a Mourneview thriller
Cliftonville are set to make an official complaint over health and safety at Windsor Park for the game against Linfield.
Cliftonville move up to second place in the Irish Premiership by beating Linfield 2-1 at Windsor Park.
Champions Crusaders produce a composed display to beat a disappointing Linfield in the Premiership top-two encounter.
Final scores from Saturday's five Premiership games, including the top-of-the-table clash between Linfield and Crusaders.
Pacesetters Crusaders and Linfield meet in the biggest game of Irish Premiership season so far at Windsor Park.
Crusaders beat Portadown at Shamrock Park to move top of the Premiership, ahead of Linfield on goal difference.
Linfield knock holders Cliftonville out of the Co Antrim Shield while Ballymena United, Carrick Rangers and Larne also progress.