Champions Manchester City are ominously poised to strike in the new year despite a dip in form from last season's treble winners, while Arsenal, Aston Villa and Tottenham are also in the mix.
"Everyone is so happy, we need to enjoy the moment," said Luiz.
Erling Haaland misses Manchester City's Premier League clash against Luton on Sunday with a foot injury that could impact his availability for the champions' hectic Christmas schedule.
Elsewhere, Scott McTominay scored twice as Manchester United beat Chelsea 2-1 and Fulham hammered Nottingham Forest 5-0, heaping the pressure on manager Steve Cooper
Alexander Isak scored the only goal at St. James' Park in a clash between two much-changed sides.
Manchester United and Chelsea are under pressure to get back on track as the Premier League returns from an international break, while Manchester City aim to maintain their perfect start to the season.
Guardiola said he was "not a god" when asked if he was the greatest of all time after arriving in Japan for City's pre-season tour
"We do have regrets because defeat is the worst thing in sport but I have to congratulate my lads," Inzaghi said after the final was decided by a solitary second-half goal from Rodri