Every team in the Premier League will wear "Black Lives Matter" threads when the season restarts ... with the powerful message replacing names on the back of players' shirts.

Check out one of the kits posted by Sheffield United on Tuesday ... the unis not only feature "BLM" on the nameplates, they also have a "Black Lives Matter" patch on the sleeve.

Players from all 20 teams came up with the idea to show solidarity with the movement earlier this month ... and will wear the special jerseys for the first 12 games once the season returns from COVID-19 suspension next week.