Tuesday's trade, which would have shipped former Pro Bowl running back Ronnie Brown to the Lions for Harrison and a 2013 draft pick -- was voided the next day because of the discovery. That leaves Detroit without Harrison and most likely starter Jahvid Best, who's dealing with another concussion, meaning the team is scrambling for running back help ahead of Sunday's game against the Atlanta Falcons.
However, the most important thing is that Harrison's tumor was found -- something that might not have happened without the trade. Physicals typically are given at the beginning of training camp but not during the season, unless there is a trade, free-agent acquisition or if a medical situation develops.
The Eagles won't say what triggered their medical staff to search for the tumor -- the team has declined to comment on the matter -- but Comcast SportsNet Philadelphia reported that Harrison told team internist Dr. Gary Dorshimer he was experiencing headaches, leading to an MRI that made the discovery.
Running back Brian Westbrook, wide receiver DeSean Jackson and former quarterback Kevin Kolb suffered concussions over the past few seasons and required neurological care, and the Eagles, led by Dr. Dorshimer, are considered to be very thorough with such injuries. Their diligence appears to be a positive break for Harrison, although the finding of a tumor certainly is alarming.