My first thought was Roger Palmer, but then I discovered that he's 61 tomorrow, his equalizer at Old Trafford was 40 years ago, and I'm just an old twat.
Rashford's career was virtually kick-started by accident, but it's strange that City aren't even producing someone who scores a few Premier League goals before fading into oblivion.
In contrast, Greenwood is the latest in a long line of "next George Best's"