Jurgen Klopp said Monday that he has been blown away by the standards Liverpool have set at the start of their Premier League title defence after coming from behind to beat Arsenal 3-1 at Anfield. Goals from Sadio Mane, Andy Robertson and Diogo Jota saw off the Gunners, who had won their opening two league games of the season. While Manchester City, Chelsea, Manchester United, Tottenham and now Arsenal have all lost in the opening three weeks of the new campaign, Liverpool have taken maximum points to lay down an early marker that they remain the team to beat in the Premier League this season. “It’s really early in the season and with this performance it is absolutely ‘wow’,” said coach Klopp. “From the first second, (it was) dominant against a team in form. We had to be careful like hell ...