Right tackle Jeff Otah failed his physical with the Jets, and his trade from Carolina won't go through unless he can pass it within the next seven days.
Otah, who has been plagued by injuries that past two years, was acquired on Monday for a conditional seventh-round draft pick.
He was a first-round pick by the Panthers in 2008, and helped pave the way for running backs DeAngelo Williams and Jonathan Stewart to become the first teammates in NFL history to each run for more than 1,100 yards in the same season in 2009.
However, he has run into injuries that have derailed his very promising career. Otah missed the 2010 season with a knee injury. He returned last season, but suffered a concussion and a back injury in September and landed on injured reserve on Oct. 19 with another knee injury.
If he can prove to be healthy, Otah can have a big impact for the Jets, who want to use the run to set up the pass under new offensive coordinator Tony Sparano. Wayne Hunter is a nine-year veteran who started all 16 games at right tackle last season, but was a career backup until being thrust into the starting job year.