when did jared allen retire

Jared Allen announced his retirement from the NFL on February 18, 2016. He made the announcement via a video on Twitter showing him riding his horse "into the sunset." Later, on April 14, 2016, he signed a one-day contract with the Minnesota Vikings so he could officially retire as a member of the Vikings. Jared Allen played 12 seasons in the league before retiring and was a five-time Pro Bowler and four-time All-Pro selection during his career.