Hundreds of Manchester United fans protested outside Old Trafford ahead of their team’s match against Liverpool, which was postponed two weeks ago due to unrest.
There was a stronger security presence outside the stadium on Thursday after some fans managed to get inside and stormed the pitch on May 2.
Fans set off flares as they protested against club owners, the Glazer family, following their failed attempt to launch a European Super League last month.
United players arrived at the stadium several hours before the scheduled kick-off to avoid a repeat of the scenes when they were barricaded inside their hotel by protesters last weekend.
Liverpool players arrived little over an hour before kick-off in what is a crucial match for their hopes of qualifying for next season's Champions League.
United are guaranteed to finish second or third in the table and will face Villarreal in the Europa League final on May 26.
However, anger towards the Glazers has been reignited by United's part in a failed European Super League (ESL) project, that collapsed within 48 hours last month due to a backlash from fans, players, governments and governing bodies.
The club's co-chairman Joel Glazer has apologised for signing up to the ESL and acknowledged that better communication is required with fans.
