New England Patriots tight end Ben Watson confirmed in a Facebook post that he tested positive for testosterone and has been suspended by the NFL for four games.

Watson, who took the banned substance during his brief NFL retirement this offseason, explained the context behind his use.

"After my contract expired last March I told my doctors I was finished playing, went through a series of medical tests and was prescribed Bio Identical Testosterone Cypionate to assist in healing my body and mind.

"On March 29, nine days after I started therapy, I was randomly tested under our substance policies. I complied out of habit, never thinking in that moment I'd want to come back. In late April, some clubs expressed interest in me playing and after much deliberation and prayer, I decided I wanted to return. Considering myself previously retired, I had forgotten all about my test in March until I got a letter on May 3rd saying my results were positive. I was devastated and for obvious reasons did not want to proceed. At that point I knew that my decision to return to play would include a four game suspension and I immediately discussed this new development with the clubs.

"Ultimately I decided to pursue another year and on May 9 the Patriots offered me a contract in spite of these circumstances."

Watson, 38, caught 35 passes for 400 yards and two touchdowns for the New Orleans Saints last season. He is entering his 16th NFL campaign.