Jason Peters already had the highest average-per-year salary for left tackles before signing a four-year extension with the Philadelphia Eagles on Wednesday.

Entering the final year of his deal, Peters will now earn $51.3 million over the next five years with $19.55 million guaranteed, according to ESPN's Adam Schefter.

What does it mean for Dallas Cowboys left tackle Tyron Smith?

Not as much as you would think, in my opinion.

Smith's deal should be much bigger than this whenever the Cowboys decide to sign their Pro Bowl left tackle to an extension. The Cowboys hold a fifth-year option on Smith's contract, which they must exercise by this spring.

The option is new to the collective bargaining agreement and will bring a whole slew of questions for teams and agents as they attempt to work out new deals.

The contract that Smith might be closer to matching is the seven-year, $84 million deal Joe Thomas received from the Cleveland Browns in 2011. That deal included $44 million in guaranteed money. Thomas, who many consider the best tackle in football, was 26 when he signed.