Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates after catching a touchdown pass from quarterback Ben Roethlisberger during the first half of an NFL football game against the New England Patriots in Pittsburgh, Sunday, Dec. 16, 2018.

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch past Atlanta Falcons cornerback Robert Alford (23) and strong safety Damontae Kazee (27) and takes it in for a touchdown in the second half of an NFL football game, in Pittsburgh.

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his toouchdown against the Tampa Bay Buccaneers during the first half of an NFL football game Monday, Sept. 24, 2018, in Tampa, Fla.

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a pass during an NFL game against the Cleveland Browns, Sunday, Sept. 9, 2018, Cleveland. Brown reached 10,000 career receiving yards as the Steelers and Browns tied 21-21.

Pittsburgh Steelers' Antonio Brown, left, carries the ball past Green Bay Packers' Atari Bigby during the first half of the NFL football Super Bowl XLV game on Sunday, Feb. 6, 2011, in Arlington, Texas.

Pittsburgh Steelers' Antonio Brown (84) celebrates with teammate Isaac Redman (33) after returning a punt for a 60-yard touchdown in the second quarter of an NFL football game against the Cincinnati Bengals in Pittsburgh, on Sunday, Dec. 4, 2011.

Pittsburgh Steelers wide receiver Antonio Brown (84), left, flips into the end zone over Indianapolis Colts defensive back Antoine Bethea (41) for a touchdown in the first quarter of an NFL football preseason game on Sunday, Aug. 19, 2012 in Pittsburgh.

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch as Washington Redskins defensive back Cedric Griffin (20) covers during the second quarter of an NFL football game on Sunday, Oct. 28, 2012, in Pittsburgh. Pittsburgh won 27-12.

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown against the Dallas Cowboys during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. Dallas Cowboys' Danny McCray (40) looks on.

Pittsburgh Steelers wide receiver Antonio Brown (84) beats Miami Dolphins strong safety Chris Clemons (30) and heads to the end zone for a second half touchdown during an NFL football game in Pittsburgh, Sunday, Dec. 8, 2013.

Pittsburgh Steelers wide receiver Antonio Brown (84) takes the field before an NFL preseason football game against the Buffalo Bills on Saturday, Aug. 16, 2014, in Pittsburgh. Pittsburgh won 19-16.

Pittsburgh Steelers wide receiver Antonio Brown (84) leaps and catches a 27-yard touchdown pass that gives the Steelers a 17-10 second quarter lead while covered by Tampa Bay Buccaneers cornerback Alterraun Verner (21) during the NFL week 4 regular season football game against the Tampa Bay Buccaneers on Sunday, Sept. 28, 2014 in Pittsburgh. The Bucs won the game 27-24.

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch against the Cleveland Browns in the second quarter of an NFL football game Sunday, Oct. 12, 2014, in Cleveland.

Pittsburgh Steelers wide receiver Antonio Brown (84) runs for yardage in action against the New York Jets at Met Life Stadium in East Rutherford, New Jersey on November 9, 2014.

Pittsburgh Steelers wide receiver Antonio Brown gets out of his custom Rolls Royce with a Pittsburgh Steelers theme as he arrives for NFL football training camp at the team training facility in Latrobe, Pa. on Saturday, July 25, 2015 .

Oakland Raiders cornerback David Amerson (29) misses a tackle on Pittsburgh Steelers wide receiver Antonio Brown (84) during an NFL football game, Sunday, Nov. 8, 2015, in Pittsburgh.

In this Sunday, Dec. 6, 2015, file photo, Pittsburgh Steelers wide receiver Antonio Brown (84) leaps into the goal post after scoring a touchdown during the second half of an NFL football game against the Indianapolis Colts in Pittsburgh. Forget the meme-generating touchdown celebrations, the real story of Pittsburgh Steelers wide receiver Antonio Brown is told in the quieter moments, the ones where one of the hardest working players in the NFL drives himself to potential greatness.

Pittsburgh Steelers wide receiver Antonio Brown (84) runs away from Denver Broncos free safety Bradley Roby (29) in the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015.

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a 17-yard touchdown pass during the first half of an NFL football game against the Cleveland Browns, Sunday, Jan. 3, 2016, in Cleveland.

Pittsburgh Steelers wide receiver Antonio Brown catches a pass over Cleveland Browns defensive back Tashaun Gipson during an NFL football game in Cleveland, Ohio Sunday, Jan. 3, 2016.

Antonio Brown of the Pittsburgh Steelers accepts the NFL.com fantasy player of the year award presented by SAP at the 5th annual NFL Honors at the Bill Graham Civic Auditorium on Saturday, Feb. 6, 2016, in San Francisco.

Pittsburgh Steelers wide receiver Antonio Brown (84) pulls in a touchdown pass under pressure from Washington Redskins cornerback Bashaud Breeland (26) during the second half of an NFL football game in Landover, Md., Monday, Sept. 12, 2016.

Washington Redskins cornerback Bashaud Breeland (26) lies on the grass as Pittsburgh Steelers wide receiver Antonio Brown (84) does a twerk celebration dance after catching a 26-yard touchdown pass that gives the Steelers a 24-6 third quarter lead during the 2016 NFL week 1 regular season football game against the Washington Redskins on Monday, Sept. 12, 2016 in Landover, Md. The Steelers won the game 38-16.

Pittsburgh Steelers wide receiver Antonio Brown (84) is covered by Washington Redskins cornerback Bashaud Breeland (26) as he catches a fourth quarter pass for a first down during the 2016 NFL week 1 regular season football game against the Washington Redskins on Monday, Sept. 12, 2016 in Landover, Md. The Steelers won the game 38-16.

Pittsburgh Steelers wide receiver Antonio Brown (84) takes the field during player introduction prior to an NFL football game against the Kansas City Chiefs on Sunday, Oct. 2, 2016, in Pittsburgh. Pittsburgh won 43-14.

Pittsburgh Steelers running back Le'Veon Bell, left, and wide receiver Antonio Brown (84) prepare to eat turkey legs with teammate quarterback Ben Roethlisberger, right, as Michele Tafoya of NBC sports watches following an NFL football game between the Indianapolis Colts and the Pittsburgh Steelers Thursday, Nov. 24, 2016, in Indianapolis. Pittsburgh won the game 28-7.

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates after catching a touchdown pass during the first half of an NFL football game against the New York Giants in Pittsburgh, Sunday, Dec. 4, 2016.

Pittsburgh Steelers wide receiver Antonio Brown waves to fans from the sideline during the first half of an NFL football game against the Cleveland Browns in Pittsburgh, Sunday, Jan. 1, 2017.

Pittsburgh Steelers wide receiver Antonio Brown, right, celebrates with DeMarcus Ayers after scoring his first of two touchdowns during the first half of an AFC wild-card NFL football game against the Miami Dolphins in Pittsburgh, Sunday, Jan. 8, 2017.

Pittsburgh Steelers wide receiver Antonio Brown (84) runs a 62 yard touchdown in the first quarter during a NFL AFC Wild Card football game between the Pittsburgh Steelers and the Miami Dolphins on January 8, 2017 at Heinz Field in Pittsburgh, PA. The Steelers went on to win the game 30-12, advancing to the divisional playoff game.

Pittsburgh Steelers wide receiver Antonio Brown (84) walks onto the field prior to an NFL AFC Championship football game against the New England Patriots on Sunday, Jan. 22, 2017, in Foxborough, Mass. The Patriots defeated the Steelers 36-17 to advance to Super Bowl LI.

Pittsburgh Steelers wide receiver Antonio Brown, left, arrives in a chauffeur driven 1931 Rolls Royce Phantom 1 at NFL football training camp in Latrobe, Pa., Thursday, July 27, 2017 .

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch as Jacksonville Jaguars cornerback Jalen Ramsey (20) defends, but comes down out-of-bounds for an incomplete pass in the fourth quarter in an NFL football game , Sunday, Oct. 8, 2017, in Pittsburgh.

Pittsburgh Steelers wide receiver Antonio Brown (84) flips over while running the football during an NFL football game against the Kansas City Chiefs, Sunday, Oct. 15, 2017, in Kansas City, Mo. The Steelers defeated the Chiefs, 19-13.

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates with JuJu Smith-Schuster (19) afters scoring during the first half of an NFL football game against the Cincinnati Bengals in Pittsburgh, Sunday, Oct. 22, 2017.

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a touchdown pass during the game against the Tennessee Titans, Thursday, Nov. 16, 2017, Pittsburgh. The Steelers defeated the Titans 40-17.

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a Cincinnati Bengals free safety George Iloka (43) and cornerback Dre Kirkpatrick (27) defend in the fourth quarter during an NFL football game in Cincinnati, Ohio on Monday, Dec. 4, 2017. The Steelers defeated the Bengals 23-20.

Pittsburgh Steelers wide receiver Antonio Brown (84) runs past Cincinnati Bengals middle linebacker Kevin Minter (51) in the second half of an NFL football game, Monday, Dec. 4, 2017, in Cincinnati.

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates a 39-38 win over the Baltimore Ravens in an NFL football game in Pittsburgh, Monday, Dec. 11, 2017. The Steelers won the clinched the AFC North Championship with the win.

Pittsburgh Steelers wide receiver Antonio Brown (84) holds two of his sons as he takes questions during a news conference after an NFL football game against the Baltimore Ravens, Monday, Dec. 11, 2017, in Pittsburgh.

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a pass to score a touchdown in front of Jacksonville Jaguars cornerback A.J. Bouye (21) during an NFL football AFC divisional playoff game, Sunday, Jan. 14, 2018, in Pittsburgh. The Jaguars defeated the Steelers, 45-42.

Pittsburgh Steelers wide receiver Antonio Brown warms up during NFL football practice, Tuesday, June 12, 2018, in Pittsburgh. Brown says he skipped the final two weeks of organized team activities to spend time with his family and not because quarterback Ben Roethlisberger also bailed on the voluntary sessions. Brown added he doesn't feel much "freedom" lately due to pressure from outside forces.