Guardiola: Haaland has already proved his worth

A penalty - which he won himself - and a ruthless finish on the run after Kevin De Bruyne had sent him clear added up to a stellar bow in Europe's toughest league from the ex-Borussia Dortmund man.

Erling Haaland celebrates scoring Manchester City's second goal of the game during the Premier League match against West Ham at London Stadium. Picture: John Walton/PA

West Ham 0 Manchester City 2 

Pep Guardiola declared that Erling Haaland has already proved his worth after the striker marked his Premier League debut with two goals.