The Lions signed free agent tight end Will Heller and released linebacker Anthony Cannon. Heller played for the Seahawks the last three seasons. Cannon has been on and off the Lions' roster since he was drafted in 2006. This move adds depth to the tight end position, but it also may suggest that L.J. Smith is no longer an option, which would be interesting considering it looks like his deal with the Falcons fell apart earlier today. I'm not sure if Smith could still be signed, but maybe the Lions assumed he was headed to Atlanta and decided to sign Heller. I don't know if they would sign Smith as well, but I imagine we will know in a few days.