The agent for former Florida Gators wide receiver Antonio Callaway told NFL Network's Ian Rapoport on Tuesday that his client produced a diluted drug test sample at the NFL Scouting Combine.
According to Rapoport, "Callaway has told those close to him he was over-hydrated and will address the issue with teams."
However, ESPN's Adam Schefter spoke to league sources who said Callaway's sample came back positive for marijuana.
Callaway stood out with 89 receptions for 1,399 yards and eight total touchdowns during his first two seasons with the Gators, but he was suspended all of last season after being charged with a pair of third-degree felonies for credit card fraud.
He was also previously served a misdemeanor marijuana citation and was accused of sexual assault.
Callaway was ultimately cleared in that case by Florida's Title IX office after testifying that he was "high on marijuana" and "so stoned I had no interest in having sex with anyone," per ESPN.com's Mark Schlabach.
"Honestly, I think the credit card thing is the least of his transgressions," an NFC scout told NFL Network's Tom Pelissero. "The drug issues that he's had are higher on the list."
"On sheer talent, Antonio Callaway would be a top-three receiver in the 2018 class," he wrote. "Unfortunately, off-field issues matter and Callaway's are bad. There will be teams that have him completely off their board. Of course, it only takes one and Callaway's talent is enough that someone will bite."