Safety James Ihedigbo, who is currently a free agent, was recently issued a four-game suspension by the NFL.
Aaron Wilson of the Houston Chronicle reported the news.
It is unclear why Ihedigbo was suspended. Four-game suspensions typically coincide with a first violation of the league's policy on performance-enhancing drugs but could also signal a violation of the substance abuse policy.
Ihedigbo, 33, played four games for the Buffalo Bills in 2016.
This article will be updated to provide more information on this story as it becomes available.