Jorginho believes Kai Havertz will become an important player for Chelsea in the future.
The German attacker scored his fifth goal in as many games against Newcastle United on Sunday, with his 89th-minute strike proving to be the winner.
Havertz has now scored in three successive league games, and Jorginho has backed the 22-year-to continue making an impact at Stamford Bridge.
"Kai is an amazing player and guy, who can make the difference for us," the Italian told the club's website.
"We believe in him because you can see the quality he has and the potential that is there.
"He is a key player for this team and can make the difference, like we saw."