Manchester United beat Chelsea 4-0 to ruin Frank Lampard's debut as a Premier League coach in their season-opening game on Sunday. Marcus Rashford scored twice, Anthony Martial grabbed another and substitute Daniel James completed the rout on his debut, but it was also an impressive defensive performance from United with the world's most expensive defender, Harry Maguire, playing his role in keeping the visitors at bay. Aaron Wan-Bissaka also impressed on his debut after playing from the start.