The NFL will hear Julian Edelman's appeal of his four-game suspension on Monday, ESPN reported Sunday night.
News broke June 7 that the New England Patriots wide receiver was to be punished for violating the league's policy against performance-enhancing substances. Albert Breer of The MMQB subsequently reported that Edelman's positive test was for an "unrecognizable substance."
According to ESPN, Edelman's appeal will focus on two fronts: the identity of the substance for which he is being suspended, and alleged mishandling of his drug sample during the testing process.
The day after word of Edelman's suspension spread, the 32-year-old veteran apologized on Instagram for the positive test.