The Daily Record reported Gerrard was understood to have made comments to referee Bobby Madden after the loss at Celtic Park.
In the match, Gerrard's side were reduced to 10 men after half an hour when Colombian Alfredo Morelos was sent off for a fifth time this season, with Rangers slipping 13 points behind Celtic and seven games remaining.
(Reporting by Alan Baldwin, editing by Christian Radnedge)
Share
