Henry, wearing a “Black Lives Matter” T-shirt, also raised his fist during the tribute.
Kick off soon took place and the two sides began the match.
However, Henry continued to kneel, and chose to remain that way for the first eight minutes and 46 seconds of the match.
The length of time Henry knelt represents the duration prosecutors initially reported Minneapolis police officer Derek Chauvin knelt on Floyd’s neck.
Prosecutors have since changed that assessment to seven minutes and 46 seconds.
The killing of the unarmed Floyd in May sparked worldwide protests.
After the game, which New England won 1-0, Henry said to reporters: “I sat down for 8 minutes and 46 seconds, I guess you guys know why.
“It was just to pay tribute and show support to the cause. That was basically it. [It’s] pretty simple.”
The Black players were dressed in black shirts with slogans on them like “Silence is Violence,” “Black All The Time,” and “Black and Proud.” Their black face masks said: “Black Lives Matter.”
“I always say back in the day, when stuff like that was happening, that I get insulted on the field for the color of my skin … I would like other ethnicities in my team to walk out before I walk out, then that would be pretty powerful.
“Because at the end of the game, I don’t want the journalist to ask the question to the Black guy. Ask the question to everybody and see if they feel our pain. That will have an impact.”