Matt Irwin put on waivers, is Zdeno Chara back?

A little bit of shocking news today from Uncle Bob:

Schultz (LA), Irwin (BOS), Tarnasky (NYR) on waivers today.

— Bob McKenzie (@TSNBobMcKenzie) October 11, 2015

Seems a little harsh. Matt Irwin hasn't been great by any stretch, but is he the weakest link on this defense? Don and Cam certainly seem to think so.

The upside is that this could mean that Zdeno Chara is ready to go against Stamkos and the Tampa Bay Lightning.