Shaq Mason's new deal includes $23.5 million guaranteed.
The Patriots have agreed to a five-year, $50 million contract extension with guard Shaq Mason, which would make him one of the highest-paid right guards in the league, according to NFL Network's Mike Garafolo.
NFL.com's Herbie Teope reports $23.5 million is guaranteed and Mason will earn close to $30 million over the first three years of the deal.
The 6'1", 310-pound Mason has started 41 games over his three-year career.
Mason, who turns 25 on Tuesday, was entering the final year of his rookie deal. He was a fourth-round pick out of Georgia Tech in the 2015 draft.