The 18-year-old marked his Premier League debut with two goals in three minutes as United beat Arsenal 3-2.
Rashford also scored twice on his first-team debut against Danish champions FC Midtjylland in the Europa League on Thursday.
With Manchester United boss Louis Van Gaal calling Rashford a "special talent", Newsround looks at the teenage striker's career so far in numbers.
Manchester United striker Marcus Rashford's incredible start to his professional career continued at Old Trafford on Sunday against Arsenal.