On Tuesday, during a meeting with members of the Baseball Writers' Association of American in Kansas City, executive director of the MLBPA Michael Weiner addressed the issue with a gathering of reporters. Weiner said he was currently working on obtaining more details of Hagadone's situation.
"I'm very aware of the matter," Weiner told reporters. "We've already been in touch with the Commissioner's Office about this matter and there's a potential grievance. I don't want to get too much into it."
In an e-mail to MLB.com, Indians general manager Chris Antonetti indicated that he had yet to hear from Major League Baseball about an official grievance.
Following his last outing for Cleveland on Friday against the Rays, Hagadone suffered what Antonetti described as a "self-inflicted" injury to his pitching hand. After being pulled from the game, in which he allowed two runs in two-thirds of an inning, Hagadone reacted in anger.
The Indians said on Thursday that Hagadone underwent surgery to repair his fractured left radius, which is in the forearm area below the wrist. A screw was inserted and he is expected to be sidelined 8-10 weeks.
"We're certainly disappointed with the reaction to it," Antonetti said on Sunday. "He was certainly very frustrated coming out of the game. We certainly would have wished he would have handled it a little differently."
Hagadone, 26, was optioned to Triple-A following his outing on Friday and Cleveland recalled lefty Scott Barnes from the Minors to fill the open spot in the bullpen. On Sunday, the Tribe placed Hagadone on the disqualified list. A player is ineligible for pay for the days spent on the disqualified list.
Hagadone had posted a 16.43 ERA over his last 10 appearances for the Indians after having a 2.04 ERA in his first 17 outings of the season.
Weiner said Hagadone's injury could be considered "work-related" in the MLBPA's eyes.
"There is a long standing precedent in baseball," Weiner said, "and arbitration precedent going back to Doyle Alexander, a great player and a great union member, saying that baseball is a very intense game. And if a player, in the intensity of the moment, makes a mistake and whams his hand against the dugout or a door or does something else, that's a work-related injury. That's part of the game.
"Clubs want players to compete, to compete very hard, and sometimes those emotions come out. No player is proud of the fact that he injured himself in that kind of situation. But Nick is not the first player this year, and certainly not the first player in baseball history, who unfortunately suffered that kind of injury."