A deal to sign Gittens was struck late last month and Dortmund revealed on Thursday that the young winger was on the cusp of signing for Chelsea, who are reported to have paid an initial £48.5 million ($66.2 million) with a further £3.5 million ($4.8 million) in add-ons.

Chelsea have confirmed the signing of Jamie Gittens from Borussia Dortmund for a fee of £48.5million with a potential £3.5m in add-ons. The 20-year-old has signed a seven-year contract at Stamford Bridge through to 2032, after The Athletic reported that the clubs had reached an agreement in principle last week.

LONDON — Chelsea is expected to sign English winger Jamie Gittens from Borussia Dortmund, the German club said Thursday. Gittens follows in the footsteps of Jadon Sancho, another former Manchester City youth player who developed his game at Dortmund.