Washington Redskins linebacker Mason Foster, who played several weeks with a torn labrum in his shoulder and was placed on injured reserve Friday, expressed displeasure with the team's front office in a series of tweets early Saturday morning.

Foster said these were the best coaches and teammates he's ever had, but then used an emoji to cast doubt on everyone else. He also tweeted, "Lay everything on the line for someone.......just to have that same person slap you in the face #IssaShame."

Lay everything on the line for someone.......just to have that same person slap you in the face #IssaShame — Mason_Foster (@Mason_Foster) October 28, 2017

All I know is Scot wouldn't have done me like that....just keep it real from the start — Mason_Foster (@Mason_Foster) October 28, 2017

They doin the real1s dirty & coddling the fake — Mason_Foster (@Mason_Foster) October 28, 2017

Coaches, Doctors and trainers are amazing https://t.co/OLweLPLXli — Mason_Foster (@Mason_Foster) October 28, 2017

It ain't nothing like that bro, ppl need to see how they doin the young Africans in the NFL https://t.co/SAMRamxCnJ — Mason_Foster (@Mason_Foster) October 28, 2017

He tweeted a short time later that, "All I know is Scot wouldn't have done me like that....just keep it real from the start." That, likely, was in reference to Scot McCloughan, fired as the team's general manager in March. Foster later retweeted someone who said "McCloughan a real 1!"

A source said the situation reminded Foster too much of what he encountered in his final season with Tampa Bay. That season, he also injured his shoulder in a Week 2 game vs. the Rams and missed the next three games. He played only 10 that season.

At the time, he told friends he believed the Bucs would re-sign him. But they did not. After getting hurt this season, Foster wanted to avoid a similar scenario and had asked the Redskins for a one-year extension, giving him some security, said a friend of Foster. But the Redskins did not accommodate that request.

Foster replied to one person on Twitter saying "...why would I have played 3 weeks with a completely torn labrum." And when asked if it was the front office, coaches or trainers, he replied that the coaches, doctors and trainers were amazing.

He also retweeted one person who told him that "Whatever wrong FO has done to you I hope they immediately fix. Yes, it's a business, but loyalty and respect are part of any successful one."

Foster told one follower he wanted to let people know how they "doing the young Africans in the NFL" but then told another that "color don't mean nothing to me" but that he wanted to let the people who "ride with you get the real right away.....No BS."

Doug Williams was elevated to senior vice president of personnel, but team president Bruce Allen is the one who holds the power in the organization and oversees the front office. However, Foster did not specifically name anyone.

Foster met with Allen Saturday morning and later tweeted, "It's squashed ... We good."

It's squashed.....sit down & talk it out face to face....We good #HailGang — Mason_Foster (@Mason_Foster) October 28, 2017

Foster is typically a reserved player who doesn't cause waves with his interviews or quotes.

Foster, who started alongside Zach Brown, will undergo surgery to repair his injury. He had played through the injury since separating his shoulder in Week 2 vs. the Los Angeles Rams.

Foster then told coaches Friday morning that the pain had become too severe and he needed to have surgery. Despite playing with this injury, he typically was at least limited in practice.

He is signed through the end of this season with a base salary of $1.25 million; part of his deal included incentives classified as likely to be earned based on play time. Now he won't be able to achieve those incentives.