During this summer, London's Chelsea lost their undeniable leader Eden Hazard, who moved to Madrid's Real.
The "Aristocrats" reached an agreement with Dortmund's Borussia in January for the acquisition of Christian Pulisic, who potentially should fill the vacancy left by the departing Belgian.
E. Hazard, who left, has no doubts about the successful future of C. Pulisic in Chelsea's ranks, stating that the 20-year-old American could become one of the best players in the world.
"I have no doubt that Pulisic could become one of the best players in the world in the future. He could become a true star. Right now, Christian is in one of the best clubs in the world, where he fits in very well," Hazard said while speaking to the Associated Press.
C. Pulisic played 30 games for BVB last season, scoring 7 goals and providing 6 assists.