The Nigerian moved to Norwich from Fenerbahce last month.
"I'm excited that I had this opportunity to come back to England," Yobo said.
"It's probably the best league in the world, and it's a new challenge so I'm looking forward to it.
"There were loads of clubs from abroad who were interested in me, but the manager here convinced me and I wanted to come back to the Premier League.
"We had a week break for Christmas in Turkey but then two weeks of training after that and it was good, so I'm ready to go."