WASHINGTON (AP) -A person at the NFL Players Association says the union is trying to set up a meeting with Cleveland Browns players this week to talk about coach Eric Mangini's practices.

The person tells The Associated Press that the union is looking into what has been happening in Cleveland, where two players have been injured in post-practice sessions Mangini calls ``opportunity periods.''

The person spoke to the AP on condition of anonymity to protect the Browns players' confidentiality.