Tensions threatened to boil over again outside Old Trafford after Manchester United fans gathered once more to protest the Glazer ownership ahead of their rescheduled match with Liverpool.
Jurgen Klopp's side travel to Old Trafford after their May 2 clash was postponed after fans broke into Old Trafford and invaded the pitch before kick-off.
United have bolstered security presence ahead of tonight's fixture, due to kick off at 8.15pm BST, with dozens of security staff and Greater Manchester Police officers seen preparing additional barriers outside Old Trafford.
Supporters have flocked to United's ground in their masses to voice their grumblings with the club's American billionaire owners, letting off yellow and green flares while displaying anti-Glazer banners.