The Potters held successful talks with the former Celtic star on Thursday and filed the neccessary paperwork to the Football Association and Football League before the 5pm deadline.

There were fears the deal may have collapsed but the Championship leaders confirmed on Friday morning that the transfer had been approved.

City chief executive Tony Scholes told the club's official website: "I am delighted to confirm the temporary signing of Stephen has been completed.

"He and Shola Ameobi will both be with us until the end of the season to help us in our final push."

Tony Pulis previously tried to sign Pearson when he was at Celtic and the Potters boss has remained a firm admirer of the 25-year-old since his £750,000 switch to Pride Park last year.

The Scotland international has made 24 appearances for Derby this season but Paul Jewell has allowed him to drop down to the Championship to aid Stoke's challenge for promotion.

Pearson is likely to go straight into the squad for Stoke's clash with Sheffield Wednesday on Saturday.