Doss played in 15 career games before joining the Panthers in January 2018.
Matt Kalil placed on injured reserve
Left tackle will be sidelined through at least the first eight games of 2018.
Panthers OTA Observations: Day 7
Ron Rivera watched over another day without Trai Turner. And saw a new kicker impress.
Panthers re-sign LaDarius Gunter
Carolina is bringing back the reserve corner on a one-year deal.