The Lions have terminated the contract of cornerback Chris Houston.
Houston, who's a seven-year veteran, has been one of the leaders in Detroit's secondary for years but had what is arguably his most unproductive season in 2013.
Houston recorded 44 tackles and had two interceptions last season.
"Chris Houston underwent a significant medical procedure this spring. Both parties felt that the best course of action at this time was to release Chris and allow him to rehabilitate away from the Club," the Lions announced in a statement. "The Lions appreciate Chris' contributions over the years and wish him the best in his recovery."
Last year, Houston agreed to a five-year deal with the Lions worth $25 million, including a $6.5 million signing bonus.
Houston spent the first three seasons of his career in Atlanta before arriving to Detroit.