ESPN: Antonio Callaway tested positive for marijuana at NFL combine

Former Florida Gators receiver Antonio Callaway's off-field struggles continue.

ESPN's Adam Schefter reported Tuesday evening that Callaway tested positive for marijuana at the NFL's scouting combine.

The NFL Network reported that his sample was diluted.

Callaway, a 5-foot-10, 193-pound athlete, is a first-round talent who ran the 40-yard dash in 4.41 seconds at the combine. He's also the only player in UF history to score a touchdown by rush, catch, pass, punt return and kickoff return.

But his off-field concerns will almost certainly keep him out of Thursday's first round, and could drop him into the late rounds Saturday.

The Miami native was suspended for the 2016 offseason as UF investigated a sexual assault accusation against him. He was cleared of the complaint, but admitted to being high on marijuana during the incident.

Callaway was later cited on a complaint of marijuana possession and was suspended for all of last season as part of the Gators' credit-card fraud scandal. In October, police stopped him in Palm Beach County and alleged that he drove 95 mph in a 65 mph zone, at 1:30 a.m., with a suspended/revoked license.

In two seasons, Callaway caught 89 passes for 1,399 yards and seven touchdowns.