Report: NFL's Winston investigation expected to extend into offseason

The NFL's investigation into allegations that Tampa Bay Buccaneers quarterback Jameis Winston groped a female Uber driver isn't expected to be complete by the end of the season, a league source told ESPN's Adam Schefter.

This means the NFL could be dealing with another high-profile, off-field case for the second straight offseason after the lengthy investigation into domestic violence allegations leveled at Ezekiel Elliott.

The league started its investigation into the March 2016 incident involving Winston by speaking with Buccaneers head of security Andres Trescastro, reports Schefter, characterizing the conversation as "introductory and exploratory."

The Uber driver alleges that Winston grabbed her crotch, which he denies.

The driver said only Winston was in the car, but Philadelphia Eagles cornerback Ronald Darby has since contradicted her. Darby says he was in the vehicle with Winston and one other passenger, and called the allegations "inaccurate." He played with Winston at Florida State in 2013-14.