Chelsea, who won the 2021 Club World Cup in its previous format, struck first in the 22nd minute when PSG fullback Nuno Mendes gifted possession to Malo Gusto.
While his initial effort was blocked by Mendes, Gusto collected the rebound and found Palmer unmarked in the middle and the midfielder made no mistake, slotting a tidy finish just inside the left post.
Palmer doubled the lead after the 30th-minute cooling break with a goal of sublime quality. Latching onto a precise through ball from Levi Colwill, he cut inside before faking a pass to dummy a defender and firing into the bottom-left corner.
Palmer then turned provider, running up the channel before finding Joao Pedro, who took the ball in his stride and beat the offside trap before chipping his finish beautifully over keeper Gianluigi Donnarumma.
PSG’s misery was completed when Joao Neves was sent off for pulling Marc Cucurella’s hair in the 83rd minute, as PSG’s players grew in frustration as the match progressed.
The encounter turned ill-tempered at the end, with players going at each other after the final whistle, but the flare-ups quickly dissipated as Chelsea’s players went to celebrate with their fans.
