Twice in Mike Zimmer's seven offseasons as head coach, the Vikings have opened free agency with substantive investments that indicate how vital a run-stopping nose tackle is to their plans.
They made Linval Joseph the first free agent of the Zimmer era on March 12, 2014, giving the former Giants nose tackle a five-year, $31.25 million contract that would eventually be supplanted by a five-year, $62.5 million deal in 2017.
Those two deals put Joseph in the middle of the Vikings defense for 93 of a possible 101 regular-season and playoff games from 2014-19.
Then, when the team decided to move on from the 31-year-old Joseph this spring — releasing him six years and a day after it signed him — it made former Ravens tackle Michael Pierce its big prize of 2020 free agency with a three-year, $27 million deal.
Pierce's decision on Tuesday to opt out of the 2020 season, over concerns about how COVID-19 could affect him given his family's history with asthma, came with the blessing of team doctors who understood the risks coronavirus could present to the 345-pound tackle.
As of Wednesday afternoon, Pierce was one of 31 NFL players to forgo playing this fall, according to NFL.com, with the league's opt-out deadline still at least a week away.
The NFL's efforts to keep the virus out of locker rooms notwithstanding, football is laden with enough risk that players have more safety considerations than ever to weigh when determining whether to play or sit out this fall.
And yet, the choices players make for their personal well-being come with cold, empirical football effects. For the Vikings, it's this: Without Pierce, they'll head into the fall absent a proven nose tackle for the first time in Zimmer's tenure.