The Denmark international spent the 2011-12 campaign on loan in the Italian capital, and has ruled out a return to the Bundesliga side this summer
The Denmark international joined the Giallorossi on a one-year loan deal at the start of the 2011-12 campaign after a difficult time with the Bundesliga side, and he has insisted that he does not want to work with coach Felix Magath again.
"I am not going to call Mr. Magath. I will never player under Magath again," Kjaer was quoted as saying by Kicker.
"At the moment, I am concentrating on the European Championship and then we will see. It goes without saying, though, that I will not be returning to Wolfsburg."
The 23-year-old has a contract with the Wolfe until the summer of 2014, but it seems unlikely that he will see out that agreement following his latest comments.