Derek Anderson has potential options outside of Panthers

CHARLOTTE, N.C. -- Derek Anderson isn’t in the same conversation as Kirk Cousins, Case Keenum, Sam Bradford and AJ McCarron when it comes to available free-agent quarterbacks.

But Anderson is drawing interest from teams outside of the Carolina Panthers, where he has been Cam Newton’s backup since 2011.

Several teams have expressed interest in the 34-year-old Anderson, according to a league source. The Panthers also remain an option, as coach Ron Rivera expressed at the NFL combine.

But Carolina hasn’t made a move yet, and may be willing to let the quarterback market play out a bit before making a decision.

Rivera also said at the combine it’s time to start developing a future replacement for…