PSV Eindhoven axed former Dutch international Mark van Bommel as manager Monday following a string of disappointing results which came to a head after a 3-1 loss against arch-rivals Feyenoord.
Both teams have found form in recent weeks, in part due to the excellent form of their strikers. Madrid's Karim Benzema has nine goals in his last eight games while Lionel Messi has scored 14 in 12.
It was his 57th goal for the club and 123rd in Serie A, having also played for Inter Milan and Juventus. He was denied a second with eight minutes to go by the linesman's flag.
But while a week in Qatar might have seemed like an unwanted distraction for some in a busy schedule, Klopp was keen to point out that his team have still played the same number of games as their challengers.
But the Scot, 32, returned to the court after hip resurfacing surgery and beat fellow veteran Stan Wawrinka in the final of the European Open in October.
Van Bommel was still upbeat after Sunday's loss in Rotterdam, saying "even though I have to fight the whole world I won't give up."
Italian stadiums are the scene of recurrent racist incidents, including monkey cries aimed at black players.
Milan club manager Boban, a former midfield great with the club, said it will be a miserable holiday period.
Lyon were booed off following a dismal defeat to Rennes, who moved into fourth thanks to youngster Eduardo Camavinga's late strike that gave Rennes their fourth league win in a row.
"The performance was really, really good... You can't control a game away from home much more than that," said Potter.