Tampa Bay Buccaneers quarterback Jameis Winston (3) signs autographs for fans after an NFL football training camp practice Friday, July 28, 2017, in Tampa, Fla. (AP Photo/Chris O'Meara)
Tampa Bay Buccaneers wide receiver DeSean Jackson makes a catch during NFL football training camp Friday, July 28, 2017, in Tampa, Fla. (Loren Elliott/Tampa Bay Times via AP)
Tampa Bay Buccaneers quarterback Jameis Winston throws a pass during an NFL football training camp practice Friday, July 28, 2017, in Tampa, Fla. (AP Photo/Chris O'Meara)
San Francisco 49ers head coach Kyle Shanahan, left, watches practice with general manager John Lynch during NFL football training camp Friday, July 28, 2017, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers linebacker Reuben Foster runs drills during the NFL team's football training camp Friday, July 28, 2017, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers lineman Solomon Thomas enters the field during the NFL team's football training camp Friday, July 28, 2017, in Santa Clara, Calif. (AP Photo/Marcio Jose Sanchez)
Jacksonville Jaguars quarterback Blake Bortles, center, looks to hand off the ball during a light scrimmage at NFL football training camp, Friday, July 28, 2017, in Jacksonville, Fla. (AP Photo/John Raoux)
Jacksonville Jaguars running back T.J. Yeldon catches a pass during NFL football training camp, Thursday, July 27, 2017, in Jacksonville, Fla. (AP Photo/John Raoux)
Jacksonville Jaguars offensive line coach Pat Flaherty, left, watches as offensive lineman Josh Wells (72) runs through a drill during NFL football training camp, Friday, July 28, 2017, in Jacksonville, Fla. (AP Photo/John Raoux)
Jacksonville Jaguars running back Leonard Fournette (27) catches a pass during NFL football training camp, Friday, July 28, 2017, in Jacksonville, Fla. (AP Photo/John Raoux)
New England Patriots wide receiver Danny Amendola (80) warms up at NFL football training camp, Thursday, July 27, 2017, in Foxborough, Mass. (AP Photo/Steven Senne)
New England Patriots wide receiver Julian Edelman (11) runs a drill with defensive back D.J. Killings (29) during NFL football training camp, Friday, July 28, 2017, in Foxborough, Mass. (AP Photo/Michael Dwyer)
Atlanta Falcons running backs Devonta Freeman (24) and Tevin Coleman (26) get in some work during NFL football training camp on Thursday, July 27, 2017, in Flowery Branch, Ga. (Curtis Compton/Atlanta Journal-Constitution via AP)
Atlanta Falcons cornerback Desmond Trufant (21) and linebacker De'Vondre Campbell (59) cover running back Devonta Freeman on a pass reception during NFL football training camp on Thursday, July 27, 2017, in Flowery Branch, Ga. (Curtis Compton/Atlanta Journal-Constitution via AP)
Atlanta Falcons defensive tackle Ra'Shede Hageman and running back Devonta Freeman walk to the field for NFL football training camp on Thursday, July 27, 2017, in Flowery Branch, Ga. (Curtis Compton/Atlanta Journal-Constitution via AP)
New York Giants head coach Ben McAdoo talks to reporters at NFL football training camp, Friday, July 28, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)
New York Giants quarterback Eli Manning talks to reporters at NFL football training camp, Friday, July 28, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)
New York Giants quarterback Eli Manning talks to reporters at NFL football training camp, Friday, July 28, 2017, in East Rutherford, N.J. (AP Photo/Julio Cortez)
New York Jets linebacker Demario Davis speak with reporters at NFL football training camp Friday, July 28, 2017, in Florham Park, N.J. (AP Photo/Dennis Waszak)
New York Jets nose tackle Steve McLendon speak with reporters at NFL football training camp Friday, July 28, 2017, in Florham Park, N.J. (AP Photo/Dennis Waszak)