The 25 year scored 11 goals for the Rovers last season and was one of Millers boss Paul Warne an admirer.
Speaking to the clubs official website, the boss said; “I think he was one of the outstanding players in the league. Wingers are a dying breed with the way we want to play so he's always been on my radar, I watched Doncaster live more than any other club last year, it helps that I live five minutes from the ground but I did watch him no end,”
“He can play with both feet, as a 10 and on either wing. He's at a good age and a good kid. He had to go through our interviewing process which is something like 'SAS Who Dares Wins' and he got through that okay. His player profile and personality checks all came through and fundamentally he wanted to come here, which is obviously a great point.
“You want to sign players who want to come here, they know how hard it is here.”
"He's got a bit of a colourful background, he was at Peterborough but didn't play, then took himself off to Ireland played for a couple of years and then came back here,” Warned added.
“He performed for a really good Doncaster team and really showcased himself, so I knew he had a good character trait.
“In conversation, some players nod politely, some ask questions and some interrogate you back. He was a little bit of all, he had a bit of confidence which you need to have here and the confidence to play. Once we met him we did everything we could to get it over the line.”