The Blues announced in April they had agreed a deal to sign the 23-year-old from Werder Bremen for an undisclosed fee.
Marin is a German international but is from a Serbian background so has been getting a helping hand from Ivanovic - the Serb captain.
"I met him in the World Cup in 2010 when he played against us for
"We met again when he signed for Chelsea, and we trained today for the first time together and I am very impressed and feel very positive about him.
"He feels confident and he feels ready and this is most important for now.
"It is great for me because I can speak the Serbian language with him and I will try to help him but he speaks English already."
As well as receiving a helping hand from Ivanovic, Marin revealed former Chelsea striker
The midfielder was team-mates at Werder Bremen, where the Peruvian ended up after a frustrating spell with the Blues.
That, though, did not stop Pizarro recommending a move to
"He [Pizarro] only had good things to say," Marin told Chelsea TV. "I asked him how it is here and he still has a house in Cobham.
"He didn't play a lot but he said that he had a great time here and he thinks I will enjoy it.
"I think I am an offensive player, more a winger, so I hope I can give a lot of assists to strikers so they score a lot of goals and they help the team.
"If you play for such a team as Chelsea you want to win trophies, like last year with the Champions League and the FA Cup.
"The Premier League I think is the best league in the world and to win this, that is my aim."
Marin is currently enjoying his first few days training with his new team-mates after the summer break.
However, the midfielder's keenness to settle with the west Londoners saw him familiarise himself with the club before pre-season began.
"I am now here for three weeks and I think I know everybody [who works here] now," Marin said.
"I am happy to start team training now and I feel good. It was the first time we trained together with the ball, we did a lot and it was good intensity.
"The first two days we have only one session a day and then it starts with double sessions."
English Premier League