The New Orleans Saints modified the contract of running back Chris Ivory by adding a $72,900 signing bonus to the final year of his contract, NFL.com reported Sunday. The team added the signing bonus to make up for the money he lost while on the physically unable to perform list last season. No years were added to the contract, and Ivory will be a restricted free agent after next season. Ivory was activated in Week 8 in 2011 and finished the season with 374 yards and one touchdown in six games, including two starts. Because he was on the physically unable to perform list, his pay rate could be changed. He did not earn his full $450,000 rate (at $26,471 per week), and instead Ivory was paid at a rate of $273,000 (which was $16,059 per week) for the first seven weeks of the season. The Saints were not required to pay him the extra signing bonus, but did so anyway, according to NFL.com.