The two clubs enjoy a close relationship.
"Yes, I played with Patrick van Aanholt, Tomas Kalas and Gael Kakuta last season. They also helped me. I asked a lot of things about the club and they said that Chelsea is incredible. Now I am here I can see this. I think they will help when I train on Monday also," Van Ginkel told chelseafc.com.
"I look forward to it a lot. It's not scary, but I will be a little bit nervous maybe! Playing with players like Frank Lampard and John Terry will be a huge thing. I played three years at Vitesse, but the Premier League is very good, and I will enjoy playing with these players with this experience."