Here are some of the athletes around the NFL and beyond following Colin Kaepernick's lead by protesting for social justice during the national anthem.
Colin Kaepernick and Eric Reid, San Francisco 49ers
Colin Kaepernick #7 and Eric Reid #35 of the San Francisco 49ers kneel in protest during the national anthem prior to playing the Los Angeles Rams in their NFL game at Levi's Stadium on September 12, 2016 in Santa Clara, California.
Jelani Jenkins, Arian Foster, Michael Thomas and Kenny Stills, Miami Dolphins
From left, Miami Dolphins' Jelani Jenkins, Arian Foster, Michael Thomas, and Kenny Stills, kneel during the singing of the national anthem before an NFL football game against the Seattle Seahawks, Sunday, Sept. 11, 2016, in Seattle.
Marcus Peters, Kansas City Chiefs
Kansas City Chiefs cornerback Marcus Peters raises his fist in the air during the national anthem before an NFL football game against the San Diego Chargers on Sunday, Sept. 11, 2016, in Kansas City, Mo.
Antoine Bethea and Eli Harold, San Francisco 49ers
San Francisco 49ers' Antoine Bethea (41) raises his fist alongside teammate Eli Harold (not pictured) at the end of the National Anthem on Monday, Sept. 12, 2016 at Levi's Stadium in Santa Clara, Calif.
Jeremy Lane, Seattle Seahawks
Seattle Seahawks cornerback Jeremy Lane sits as the national anthem plays before a preseason NFL football game against the Oakland Raiders Thursday, Sept. 1, 2016, in Oakland, Calif.
Kenny Britt and Robert Quinn, Los Angeles Rams
Kenny Britt #18 and Robert Quinn #94 of the Los Angeles Rams raise their fists in protest prior to playing the San Francisco 49ers in their NFL game at Levi's Stadium on September 12, 2016 in Santa Clara, California.
Brandon Marshall, Denver Broncos
Denver Broncos inside linebacker Brandon Marshall (54) kneels during the National Anthem prior to an NFL football game against the Carolina Panthers, Thursday, Sept. 8, 2016, in Denver.
Jason McCourty, Tennessee Titans, and Devin McCourty, New England Patriots
Jason McCourty of the Tennessee Titans and Devin McCourty of the New England Patriots, seen here at Super Bowl 50 Radio Row on February 4, 2016 in San Francisco, California, were both part of protests with their respective teammates, each raising a fist following the national anthem
Martellus Bennett, New England Patriots
New England Patriots' Martellus Bennett takes questions from reporters in the team's locker room before an NFL football practice, Wednesday, Sept. 7, 2016, in Foxborough, Mass. Bennett was one of two Patriots to raise a fist in protest following the national anthem during Week 1
Jurrell Casey, Tennessee Titans
Jurrell Casey #99 (right) of the Tennessee Titans, seen here celebrating during the game against the Jacksonville Jaguars during the game at Nissan Stadium on December 6, 2015 in Nashville, Tennessee, was among three Titans to raise a fist following the national anthem on Week 1.
Wesley Woodyard, Tennessee Titans
Wesley Woodyard #59 of the Tennessee Titans, seen here greeting an official during the game between the New England Patriots and the Tennessee Titans at Gillette Stadium on December 20, 2015 in Foxboro, Massachusetts, was among three Titans to raise a fist following the national anthem during Week 1.
Megan Rapinoe, Seattle Reign/USWNT
Megan Rapinoe #15 of the U.S. women's national team kneels during the playing of the national anthem before a match against Thailand on Sept. 15, 2016 at MAPFRE Stadium in Columbus, Ohio. Rapinoe also has protested during the anthem at two NWSL games this season.
Seattle Seahawks players and coaches, including cornerback Richard Sherman (25) and head coach Pete Carroll, third from left, stand and link arms during the singing of the national anthem before an NFL football game against the Miami Dolphins, Sunday, Sept. 11, 2016, in Seattle.
Steven Means, Malcolm Jenkins and Ron Brooks, Philadelphia Eagles
Philadelphia Eagles defensive end Steven Means (51), strong safety Malcolm Jenkins (27) and defensive back Ron Brooks (33) raise their arms during the national anthem before an NFL football game against the Chicago Bears, Monday, Sept. 19, 2016, in Chicago.
Members of the Indiana Fever kneel during the playing of the national anthem before the start of of a first round WNBA playoff basketball game, against the Phoenix Mercury, Wednesday, Sept. 21, 2016, in Indianapolis.
Kelsey Bone and Mistie Bass, Phoenix Mercury
Phoenix Mercury's Kelsey Bone, right, and Mistie Bass, second from right, kneel during the playing of the national anthem before the start of a first-round WNBA playoff basketball game against the Indiana Fever, Wednesday, Sept. 21, 2016, in Indianapolis.
Duane Brown, Houston Texans
Duane Brown #76 of the Houston Texans raises his fist during the national anthem before the game against the New England Patriots at Gillette Stadium on Sept. 22, 2016 in Foxboro, Massachusetts.