And the former Tottenham owner used the north London side as an example to illustrate his point.
Indeed, Sugar feels the fact 'even Spurs' could convincingly beat Manchester City takes the shine off the fact Klopp managed a three-goal win at the Etihad Stadium.
Calm down one swallow does not make a summer. Remember even Spurs gave Man City a whacking https://t.co/dQsHtbELnO— Lord Sugar (@Lord_Sugar) November 21, 2015
Of course, a key difference was Liverpool managed to win so convincingly away from home, while Spurs were at White Hart Lane.
But both sides have beaten Manchester City 4-1 and, rather than take Sugar's approach, it looks more like a sign that the teams are getting their ship in order. They looked very equal when they played each other during Klopp's first game in charge.
Tottenham are unbeaten in the Premier League since the opening day of the season, while Liverpool look as though Klopp is working his magic at Anfield very quickly.
The Reds need to sort out their home form, of course, but, if they play like they did at the Etihad, they can beat anyone anywhere.