Arsenal legend Ian Wright says Arsene Wenger's team miss an enforcer in the mould of AC Milan star Rino Gattuso.
In his column for The Sun, Wright said: "Arsene Wenger accused Manchester United of trying to kick his team off the pitch in Saturday's 2-1 defeat at Old Trafford.
"There is no point complaining about it. He needs to address the issue by bringing in someone who will stand up to the bullies.
"If he does not, the manager's five-year wait for a trophy might go on even longer.
"Arsenal need to sign someone like AC Milan's Gennaro Gattuso, an experienced, tough-tackling midfield enforcer who would not have allowed himself or his team-mates to be bullied by a player like United's Darren Fletcher.
"It is no good Wenger complaining about a lack of protection for his young players. They have to protect themselves."