As of this writing, the Carolina Panthers have $15.7 million in cap space to sign free agents. That puts them in the bottom 10 teams (there are only seven teams with less cap space than the Panthers right now) and will probably make it difficult for them to add any quality free agents to the roster.
And the 10 teams tightest to the cap, as of this AM ...
1) Bucs $2.374M
2) Saints $3.673M
3) Vikings $4.264M
4) Falcons $5.992M
5) Chiefs $8.280M
6) Steelers $9.252M
7) Eagles $15.586M
8) Panthers $15.