- Tag results for Paris Saint-Germain
Kylian Mbappe, despite a late goal, and Neymar seemed far below their best, while Edinson Cavani hardly touched the ball as PSG lost 3-2 at Anfield in the Champions League on Tuesday.
Klopp saluted lethal finishes from Roberto Firmino and Daniel Sturridge as Liverpool kicked off their Champions League campaign with a dramatic 3-2 win over Paris Saint-Germain on Tuesday.
Despite the late drama, victory was well deserved for last season's finalists who dominated throughout and bounced back from blowing a 2-0 first-half lead to take the early advantage in Group C.
Klopp insisted Neymar wasn't fully fit in Russia after breaking a bone in his foot in February that forced him to miss the rest of the club season with the French giants before the World Cup.
Klopp and Tuchel are the highest-profile German coaches around today, with both men having followed strikingly similar paths at home before taking up jobs with two of Europe's biggest names.
Neymar and Angel di Maria, the latter direct from a corner, had PSG two goals up at the Stade des Costieres, only for their newly-promoted opponents to haul themselves level heading.
The World Cup winner came off the bench to score a late brace that gave the French champions a 3-1 victory at Guingamp on Saturday.
The German club announced on Sunday that they had agreed to sell the 21-year-old to PSG for 37 million euros ($42.3 million).
Gianluigi Buffon also produced a couple of sharp saves on his home bow in goal for PSG as coach Thomas Tuchel made a winning start at the Parc des Princes.
Tuchel insisted that Neymar is the "key player" for his side, as his team prepare for the start of their Ligue 1 title defence against Caen on Sunday.
Neymar returned in time for the World Cup, but failed to inspire Brazil to a record-extending sixth title as they suffered a 2-1 quarter-final loss to Belgium.
The 19-year-old will wear the number seven shirt this season, moving up from the 29 jersey he was given last term in his first campaign with the club.
Angel Di Maria's double fired PSG to their first silverware under new coach Thomas Tuchel as Neymar, long sidelined by a metatarsal fracture, came on as a late substitute.
The world's most expensive player, wearing a canary-yellow hoodie, posed for pictures with airport staff before his noisy welcome in the arrivals hall.
PSG forward Neymar will lace up his boots once again for the tournament in his hometown of Praia Grande on July 20-21.