Manchester United manager responded angrily to comments about striker . Radamel Falcao has failed to impress since joining on loan from Monaco . But ##rick van der was quick to stick up for his Colombian forward . Van Gaal argued with journalists who are ' happy ' to see striker failing . United boss left the room with a thumbs up and a sarcastic comment . Jamie Redknapp : Why did striker van Gaal leave Falcao on the bench ? # HERE for all the latest Manchester United players .
Manchester United manager responded angrily to question about striker . Radamel Falcao has failed to impress since joining on loan from Monaco . But Louis van Gaal was quick to stick up for his Colombian forward . Van Gaal argued with journalists who are 'happy ' to see Falcao failing . United boss left the room with a thumbs up and a sarcastic comment . Jamie Redknapp : Why did Louis van Gaal leave Falcao on the bench ? CLICK HERE for all the latest Manchester United news .