Tom Rogic grabbed his first FA Cup goal with a tidy lob as he capitalised on a shocking Chesterfield mistake.
West Brom ran out comfortable 4-0 winners over the National League side in their third round replay to set up a clash with English Championship rivals Bristol City in round four. John Swift fired the hosts ahead midway through the first period before former Celtic man Rogic got in on the action in quite bizarre circumstances.
After cutting out a cross, Chesterfield defender Jeff King attempted a BACK-HEEL inside his own box with the ball rolling into the path of the ex-Hoops star. Visiting goalkeeper Lucas Covolan came flying out to the feet of the Australia international but he showed great calmness and awareness to lift the ball over the stopper into the roof of the net to put the home side two ahead after 48 minutes. Jake Livermore added a third just six minutes later before Jovan Malcolm rounded-off the perfect night for the hosts with a fourth goal in added-time.
