Manchester United boss Ole Gunnar Solskjaer could be heard shouting 'Marcus, he cannot defend!' as he encouraged his forward to attack Arsenal full back Cedric Soares.
Solskjaer shouted from his technical area as he willed Rashford to get at the Gunners defender, who is filling in for the injured Kieran Tierney on the left back.
The United boss yelled: 'Marcus, he cannot defend. He cannot defend. Take him on if you want.'
Ole Gunnar Solskjaer shouted at Marcus Rashford to get at Cedric Soares because he 'cannot defend'