"They're in a difficult position at the bottom of the league but I watched the games over the last few weeks and see a lot of potential in the team," said Rooney.
"Their young players have a lot of talent but maybe they just need that bit of guidance on the pitch, which I believe I can try and help them with. And I believe my own qualities can help the team.
"Overall it was the group of players, manager and owners which excited me. I came over a few weeks ago and had a look around the city. It's very nice which I could see myself living in.
"There are other cities which are a bit more hectic in terms of lifestyle, like LA and New York, which I didn't believe would suit me. I felt this was the right place to live."