"The move came about really quickly," says Chester, on Peterborough's official site.
"I was training with United on Sunday and when I got home I heard from Ole Gunnar Solskjaer who told me to expect a call from the boss at Old Trafford. Sir Alex said he wanted me to go on loan to Peterborough, then Darren Ferguson rang me.
"I am really excited, I have been wanting to go out on loan for a little while now and this is a good move for me because I want matches under my belt and first team experience.
"It has been an exciting time for me of late, I have been on the fringes of the first team at United for a little while and that has been a good experience for me. I have watched closely some of the best defenders in the world at Old Trafford in Rio Ferdinand and Nemanja Vidic. I like to put a tackle in and always give my best."