Buffalo converted the maximum $11.718 million of Diggs’ salary into a signing bonus to spread over the remainder of his deal, creating $7.8 million in additional 2021 cap space, per Yates.
The Bills had a little over $3 million in cap space before the move, so this is a hefty addition.
Diggs, 27, is a former fifth-round pick of the Vikings back in 2015. He was in the final year of his rookie contract when he agreed to a five-year extension worth $72 million with the Vikings in 2018.
The Vikings traded Diggs to the Bills in 2020 for a package of draft picks including a first-round selection.
Diggs is set to make base salaries of $11.775 million and $11.85 million over the final two years of his deal in 2022 and 2023.
In 2020, Diggs appeared in all 16 games for the Bills and caught 127 passes for 1,535 yards receiving and eight touchdowns.