Mason was placed on the Reserve/Did Not Report list when the Rams began training camp, which followed on the heels of Mason being excused from OTAs for "personal reasons."
Fisher said he hasn't spoken with Mason since the 2015 season ended.
"I haven't personally spoken with Tre since the season ended," Fisher said. "I tried numerous times to reach him. Tre has made a decision not to communicate with us, not to talk. Not talking to his teammates. Right now we're more concerned about Tre Mason's well-being than we are his football career."
Combine the lack of contact with the Rams with previous police incidents -- Mason had the cops called to his house five times this offseason -- and there is very much a reason to be concerned for the running back.
At one point he looked like a promising option for Los Angeles, running for 765 yards in his rookie year and catching another 16 passes for 148 yards. He was an explosive, home-run threat of a back.
Fisher and GM Les Snead drafted Todd Gurley before 2015, however, and it made Mason largely irrelevant on the depth chart. He was clearly bothered by the draft-day decision and it cost him on the field. Mason carried the ball just 75 times in his second year with the Rams while Gurley ran his way to Rookie of the Year honors.
Now he's gone AWOL from the Rams and appears to be in a bad place, personally. Hopefully he can get the help he needs to put things together off the field.