Both sides seem to be digging in:

Mike Wallace’s speed is his biggest asset. His slowness in reporting to training camp — at least in the Steelers’ minds — is suddenly his biggest liability.

The Steelers did a not-so-slow burn Wednesday when the super-fast Wallace, ignoring the Steelers’ history of refusing to negotiate when a player is not in camp, declined to sign his $2.472 million tender offer and did not show up at St. Vincent College.

Wallace and the Steelers have been working on a multi-year contract for some time — teammate Emmanuel Sanders suggested the two sides were close — but the Steelers always shut down such talks when a player isn’t in camp. This won’t be an exception.

Let’s see how this plays out. The Steelers are taking a hard line on their policy of no negotiations for players holding out, but this might just spiral out of control.

Meanwhile, Mike Tomlin got a much-deserved contract extension. Shockingly, one idiot on ESPN actually criticized extending a coach that has been to two Super Bowls with one title. It’s another example of too many talking heads debating both sides of every conceivable issue.