MIAMI (AP) - The NFL Players Association is looking into Jonathan Martin's situation in Miami, but has not launched an investigation into possible harassment of the offensive tackle by his teammates.
Martin left the Dolphins on Monday to receive help for emotional issues, and it's unclear whether he's expected back. The Dolphins are off this weekend.
In a statement released Saturday to The Associated Press by the union, the NFLPA stresses its concern about players being provided a ''safe and professional workplace.'' Martin reportedly left the Dolphins because of the way teammates were treating him, with guard Richie Incognito cited in one report.
The union says it takes ''investigations very seriously, and in this case we have not launched an investigation into Richie Incognito or other players in Miami.''
A person familiar with the situation told the AP earlier Saturday the NFLPA plans to look into the matter next week. The person spoke on condition of anonymity because the Dolphins have said little about the reasons for Martin's absence.
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AP Pro Football Writer Barry Wilner contributed to this story.
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AP NFL website: www.pro32.ap.org and http://twitter.com/AP-NFL
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