Michael Ballack and John Obi Mikel are the latest to join the club and they can both play in Essien's position, adding even more competition to an already very competitive squad.
However, Essien is confident he can keep his place in the side but admits it is up to the boss.
"I feel good about the new players. We are trying to bring in the best players who can do something for the club so I'm happy" said Essien.
"I'm confident that I can keep my place but it's up to the boss. I just need to work
hard and see what happens."