Matt Mills has returned to Manchester City having had his loan spell at Doncaster cut short by injury.
Rovers loan spell curtailed by injury
Matt Mills has returned to Manchester City having had his loan spell at Doncaster cut short by injury.
The young defender has impressed at the League One promotion hopefuls but a torn cartilage has ended his spell at Rovers.
Mills has been sidelined for six weeks and his loss will be a major blow to Doncaster, given he had started 17 games there having joined at the end of August.
Meanwhile, defender Sam Hird has joined Grimsby Town on a one-month loan deal.
The 20-year-old has made only three appearances for Sean O'Driscoll's side this season.
