ESPN is reporting that Detroit Lions running back Jerome Harrison has a brain tumor.
The network cited two NFL sources it did not identify in Thursday's report. It says the tumor was revealed when Harrison had a physical after being dealt this week by Detroit to the Philadelphia Eagles in a trade that was voided by the discovery.
Lions coach Jim Schwartz wouldn't confirm or deny the report, citing a privacy issue. He said Harrison was back on the team's 53-man roster.
Harrison's agent, Mitch Frankel, did not return phone and email messages.
The Lions wanted to trade Harrison to Philadelphia for Ronnie Brown and a draft pick. Detroit needs help because Jahvid Best had his third concussion on Sunday.
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