All the action from the fourth-round tie at Portman Road. National League South outfit Maidstone are the lowest-ranked team left in the competition, but claimed the scalp of a Football League outfit in the previous round when they overcame Stevenage 1-0. However, they face a tough test against the Tractor Boys, who have impressed in the Championship this term and won 3-1 at AFC Wimbledon in round three.