Soccer Football - Premier League - Liverpool v Arsenal - Anfield, Liverpool, Britain - December 29, 2018 Liverpool's Roberto Firmino scores their fifth goal from the penalty spot to complete his hat-trick REUTERS/Phil Noble
(Reuters) - A Roberto Firmino hat-trick proved the highlight of Liverpool's 5-1 demolition of Arsenal as the Premier League leaders opened a nine-point gap over Tottenham Hotspur, who lost 3-1 to Wolverhampton Wanderers at Wembley.
With third-placed Manchester City playing Southampton on Sunday, Liverpool capped an astonishing month with their ninth successive league victory to leave manager Juergen Klopp conceding that he "had nothing to moan about".
