The young Welshman was initially named on the bench by Ole Gunnar Solskjaer, but took his opportunity to shine in the second half by netting the final goal in a fantastic 4-0 win over Chelsea.
James latched onto a wonderful assist from Paul Pogba and dispatched a deflected finish into the far corner of the net, before running to celebrate in front of the crowd with his ecstatic team-mates.
It was a heart-warming moment for the 21-year-old and, once he had calmed down, the young speed demon gathered his thoughts and spoke to our man Stewart Gardner in the tunnel…
Was that how you dreamt it?