Pulisic, 21, looks poised for a starring role under manager Frank Lampard this term after emerging as one of the leading performers with 11 goals and 12 assists in 34 games last season.
The United States international winger is widely considered as one of their greatest ever exports and has already secured a superstar status with 14 goals at senior international level in 34 caps.
And the Blues decision to hand him the 10 jersey which was vacated by Willian after his move to domestic rivals Arsenal will no doubt solidify his reputation as one of the leading talents in the English top-flight.
Lampard's Blues have been active in the off-season with no less than five major signings as Timo Werner, Kai Havertz, Ben Chilwell, Hakim Ziyech and Thiago Silva all arrived for the ambitious project.
And the London based outfit will kickstart their new campaign on Monday when they travel to an unpredictable Brighton and Hove Albion side on the South Coast.