Radamel Falcao has just four goals in 20 games for Manchester United . The on-loan striker has been a huge disappointment in the Premier League . Former player Ray Wilkins does not believe United will pay up to sign him . Falcao was left on the bench for United 's 1-0 win over Monaco . CLICK HERE for all the latest Manchester United news .
Radamel Falcao has just four goals in 20 games for Manchester United . The on-loan striker has been a huge disappointment in the Premier League . Former player Ray Wilkins does not believe United will pay up to sign him . Falcao was left on the bench for United 's 1-0 win over Newcastle United . CLICK HERE for all the latest Manchester United news .