Erling Haaland hit a second successive hat-trick as Manchester City crushed Nottingham Forest 6-0, while leaders Arsenal extended their perfect start to the Premier League season with a 2-1 win against Aston Villa on Wednesday. City and Arsenal have set the early pace, but Liverpool are gathering momentum after snatching a last-gasp 2-1 victory against Newcastle. Haaland has made a blistering start since his 50 million pound ($58 million) move from Borussia Dortmund in the close-season and the Norway striker's latest goal spree set a Premier League record.