A group of black Missouri football players will refuse to play until University of Missouri system president Tim Wolfe resigns, according to a tweet published by Missouri's Legion of Black Collegians Saturday night.

Wolfe has come under fire in recent weeks for his and Missouri's response to a recent series of race-related events. Most importantly, he gave what critics have deemed an insufficient response to a group of protestors who confronted him during Missouri's Homecoming parade on Oct. 20, with the car carrying Wolfe also striking one of the protestors.

In response, a student group calling itself Concerned Student 1950 — which takes its name in part from the year that Missouri first admitted a black student — has emerged as a protesting body and in late October published a list of demands that include the resignation of Wolfe. And on Nov. 2, the protestor struck by Wolfe's car, a graduate student named Jonathan Butler, announced he would begin a hunger strike that would last until Wolfe resigns, writing of incidents including the president of the Missouri Students Association being called a racial slur on campus.

That president, a student named Payton Head, also tweeted screenshots of messages posted on the app Yik Yak on Thursday. The original tweet of those screenshots has accumulated more than 1,000 retweets as of late Saturday.

Wolfe met with Butler on Friday and issued a statement that included an apology for his response during the Homecoming parade. But he also had a far less successful run-in with protestors in Kansas City, answering a question about "systematic oppression" poorly enough to produce howls that chased him as he walked away from the conversation, and video of that interaction caught fire on social media late Friday night.

"The department of athletics is aware of the declarations made tonight by many of our student-athletes," a Mizzou spokesperson said in a statement. "We all must come together with leaders from across our campus to tackle these challenging issues and we support our student-athletes right to do so."

A significant subset of Missouri's football team has joining the vocal resistance against Wolfe would seem to be the latest large-scale effort by the growing protest movement to force Wolfe and/or the university to act.

Safety Anthony Sherrils was first to post about the boycott, prior to the LBC's tweet.

We're black. Black is powerful. Our struggle may look different, but we are all #ConcernedStudent1950 pic.twitter.com/obCjSWCFVY — HeMadeAKing (@1Sherrils_2MIZZ) November 8, 2015

His original tweet was followed by several more from his teammates.

Never thought I would be in place or time like this to actually make a difference. — Russell Hansbrough (@imthatnike) November 8, 2015

This is JUST not about race. It's about Grad students getting benefits and unity within the athletes and community#ConcernedStudent1950 #GGM — Clarence Champ Green (@clgreen93mu) November 8, 2015

We gone be alright #ConcernedStudent1950 — Keyon (@KeyonXX15) November 8, 2015

It's about more than just football for me and my team #ConcernedStudent1950 — Thomas Wilson (@T_Smooove21) November 8, 2015

Stand for something or fall for anything!!! — Darvin (@DarvinRuise12) November 8, 2015

An injustice anywhere is a threat to justice anywhere. Together we can make a difference #ConcernedStudent1950 #AllLivesMatter — Ian_21nfz (@Ian_21ydh) November 8, 2015

Defensive back John Gibson III claimed that Missouri's players had the backing of their coaches.

@EdgeofSports has nothing to do with our coaches. Our coaches are 100% behind us. Including the white ones — John Gibson III (@thatgibsonkid) November 8, 2015

And offensive lineman Paul Adams, who is white, tweeted in support of his protesting teammates.

Nothin but respect for my brothers... I love y'all — Paul Adams (@PaulAdams64) November 8, 2015

Missouri players appear to be limiting their comments to social media for now.