Horlock has made the move to Scunthorpe

Horlock left Doncaster Rovers after his contract was cancelled by mutual consent earlier this week.

He had spells with Swindon, Manchester City, West Ham and Ipswich before joining Rovers in 2006.

The 35-year-old spent the majority of last season out of action because of a knee injury and was recently sidelined by a shoulder problem.