Wiseman made his Rochdale debut, where he made his first start and played for 75 minutes, in a 0–0 draw against Grimsby Town in the opening game of the season. In a match against Luton Town on 22 November 2008, he set up a goal for Lee Thorpe to score the opener, in a 2–0 win. With seventeen appearance made so far, Wiseman was rewarded with a contract extension, keeping until the end of the season. After missing a game, due to an injury, Wiseman made his return, only to be sent-off, just 31 minutes to the game, in a 4–1 loss against Exeter City on 20 December 2008. Despite suffering an injury as the season came to an end, he finished his first season at the club, making thirty-four appearance in all competition. At the end of the 2008–09 season, Wiseman was released by the club.