ITFM reported on Thursday how Horlock was to move out on loan with Yeovil most likely to take the former Northern Ireland international.
However, with 8 players unavailable for the yorkshire derby with Barnsley, Doncaster manager Dave Penny moved swiftly to recruit the experienced midfielder on an initial one month loan deal.
Kevin has played 14 games for Town in the current campaign but has recently foundhis chances limited and was told before the January transfer window that he was free to find himself another club, as his expiring contract at Ipswich will not be renewed beyond the summer.
Horlock played a full 90 minutes of the yorkshire derby at Belle Vue and it was his chipped cross from which Doncaster got their first goal.