2021 NFL draft: Steelers mock draft update

Per Dan Graziano and Jeremy Fowler of ESPN, the Pittsburgh Steelers have had conversations with pending unrestricted free agent Alejandro Villanueva but can’t agree on a number.

The market value for left tackles is considerably higher than the Steelers can afford, especially given their shaky salary cap situation. Spotrac’s calculated market value for Villanueva is three years, $49.66 million or $16.5 million salary.

Villanueva, who will be 33 in September, is one of the players many prognosticators see walking in free agency.

Pittsburgh signed the left tackle as an undrafted free agent in 2014. Since his second season,…