Liverpool manager Jürgen Klopp had just seen his team fall behind after getting outplayed in the opening 25 minutes by a supposed contender for relegation, and he’d had enough.“WAKE UP!” Klopp barked to his players, his chest out and his teeth gritted.Liverpool ended up escaping from Craven Cottage with a 1-1 draw against Fulham thanks to a late penalty by Mohamed Salah but it was hardly the stuff of champions from Klopp’s team.They weren’t alone, in what has proved a tough weekend for the Premier League’s likely title candidates.Earlier Sunday, Tottenham, the league leader, was held to a 1-1 draw by Crystal Palace.On Saturday, Chelsea lost for just the second time in the league this season, 1-0 at Everton, and the two Manchester clubs.