It appears former Houston Texan JJ Watt has signed with a new team.He tweeted a photo Monday morning of a workout. In the photo, Watt is wearing an Arizona Cardinals T-shirt. It’s simply captioned, “source: me.”NFL Network reporter Ian Rapoport tweeted that a source told him the Cardinals offered Watt a two-year contract worth $31 million, with $23 million guaranteed.Watt announced on Twitter last month