Steelers wide receiver Antonio Brown did not report for work yesterday, one day after he appeared upset on the field and left the locker room in a hurry following a 42-37 loss to the Kansas City Chiefs, reports the Pittsburgh Post-Gazette.

It is not clear if Brown’s absence was excused by Coach Mike Tomlin, but several sources indicated they did not know why he didn’t show up with the rest of his teammates for meetings and film review.

Tomlin said at his weekly press conference, shortly after the Post-Gazette first reported Brown’s absence, that he will meet with Brown on Wednesday.

“We will talk about it and other things,” Tomlin said. “I’m not going to get into whether he was excused or not.”

Earlier Monday, responding to a message on Twitter from a former Steelers employee who suggested Brown would not have the same success if he didn’t play with Ben Roethlisberger, Brown tweeted, “Trade me and let’s find out.”

The players are off today and report back to the South Side on Wednesday.

Drew Rosenhaus, Brown’s agent, said in a statement to ESPNthat “[any] idea he was asking for a trade is not accurate;” that his absence was for a personal matter “unrelated to the tweet or his relationship with the team;” and that Brown’s behavior on the sideline in Sunday’s game “was not anything more than him encouraging his coaches and teammates to win.” Cameras caught Brown yelling at offensive coordinator Randy Fichtner.

“This is a non-story that has been blown out of proportion,” Rosenhaus said. “We can end this right here and now.”