Man United will launch investigation into how Rangers fans got tickets for home areas at Old Trafford and promise 'strongest possible sanctions'
Over 3,500 Rangers supporters were officially inside the stadium but significantly more appeared to have been able to secure a seat in the home end.
Man United fans make their feelings clear by singing Alejandro Garnacho's name throughout their Europa League win over Rangers amid Chelsea interest
Mail Sport reported on Thursday that Chelsea are preparing a formal offer for Garnacho, after making opening enquiries last week, but the Argentine winger was handed a start by Amorim.