Christian Pulisic is leaving the Swoosh -- the American soccer star just inked a massive deal with Puma!!
The Chelsea midfielder -- who was previously under contract with Nike -- made the announcement Monday via Instagram ... saying, "Now it’s time to start a new chapter and create new memories."
"Today I’m joining a new family, the #PumaFam and together we are going to inspire the next generation of players out there."
The 22-year-old said in an interview with Complex that it was an "easy choice" for him --- especially since the brand wants his take on things and is giving him more freedom.