Derby have added to the signing of Stephen Pearson with the capture of Wigan Athletic midfielder Gary Teale for £600,000.
Teale joined Wigan Athletic from Ayr in 2001
Teale, 28, has become Rams boss Billy Davies' fourth new recruit during the transfer window.
The Championship side have already acquired the services of Manchester United's Dave Jones for £1m and Hull's Craig Fagan for £750,000.
Pearson was also signed for £750,000 from Scottish champions Celtic.