The 19-year-old, handed a rare chance to feature at No.9 against the league leaders, sent Man United into the lead with a cool finish past Asmir Begovic after just seven minutes.
And the Italian, speaking after the game, was also full of praise for the teenager.
“Marcus is a great player. He is still very, very young and I think he is very important for us,” he said.
“With his quality, he can be one of the top players, one of the most important players, in the world.
“He is a very good in every part of the game, he has a very good shot, movement, speed. Sometimes for a striker, it is a normal there is a not as good period (scoring goals) but I hope he continues like this because it helps the team to reach our objective.”
Rashford’s display against Chelsea was indeed reminiscent of his breakthrough Premier League debut against Arsenal. He was dangerous, fresh, hard-to-stop and packed with confidence at every turn; those often discussed ‘first five yards’ were covered with frightening levels of speed. There was an element of the unknown in the way he approached the game; this wasn’t a standard No.9 Chelsea were up against.
You could visibly see the likes of Gary Cahill, David Luiz and Victor Moses, at various points, jolting in a stunned sort of way whenever Rashford got going. Indeed, the way in which he springs away with the ball is unique, poetic (especially in the flesh) and – with the right application over a long stretch of time – potentially world beating.