Hearts manager Craig Levein says it is time Scotland stopped relying on referees from the Old Firm 'heartlands'.
West Brom have Dwight Gayle back in contention for Saturday's televised clash with Championship title rivals Sheffield United.
Ipswich and Norwich have both been fined by the Football Association following their recent derby clash, with Town boss Paul Lambert receiving a touchline ban.
Javi Gracia has challenged his Watford side to be as hungry for points as relegation-battlers Cardiff in Friday's Premier League clash.
Stuart Armstrong and Michael Obafemi are battling to be fit for Southampton's Premier League trip to Arsenal on Sunday.