Chelsea and Borussia Dortmund agree Jamie Gittens transferChelsea secure Jamie Gittens from Borussia Dortmund on a seven-year contract. The 20-year-old winger joins from the German club after Chelsea prioritized a left-sided attacker. Gittens becomes the fourth summer signing, following Delap, Essugo, and Sarr. Chelsea also target Brighton’s Joao Pedro and a central defender.