By Daniel Orme Manchester United fans have ripped into Marcus Rashford after being left fuming with his efforts against Chelsea. The forward started on the bench in Thursday’s 4-3 defeat to the Blues. He was introduced for the final 20 minutes with the Red Devils leading. Erik ten Hag’s men then somehow collapsed to lose despite leading deep into stoppage time. Footage of Rashford was shared on social media showing him meandering in the heart of midfield, with a lack of any real effort to press Cole Palmer \- who scored twice late on. The video left a number of fans furious, some of which have…