Updated Thursday, Oct. 20, 1:05 p.m. ET
The deadline-day trade between the Lions and the Eagles that was to have swapped RBs Jerome Harrison and Ronnie Brown was voided because it was discovered that Harrison has a brain tumor.
According to a report by ESPN's Adam Schefter, Eagles team doctors discovered that Harrison has a brain tumor during their examination of him. It is unknown whether Harrison's situation is life-threatening or whether he will be able to resume his career at some point in the future.
With starting RB Jahvid Best suffering a concussion in the Week Six loss to the 49ers, the Lions were looking for added depth at the position. They thought they had accomplished that goal in the trade for Brown, who hadn't done much with the Eagles (13 carries, 38 yards on the season).
Now, Harrison will be heading back to Detroit and Brown will remain with the Eagles. Best's status for Sunday's game against the Falcons is unknown. If he can't play, Lions head coach Jim Schwartz expressed confidence in Maurice Morris and Keiland Williams.
Brown had fallen out of favor with the Eagles and his role has shrunk as rookie Dion Lewis has taken the backup carries behind starter LeSean McCoy.