Washington football team head coach Ron Rivera sent his team a warning after two other players were placed on the reserve / COVID-19 roster on Saturday, providing a simulation scenario, according to John Keim of ESPN.

Washington now has six players on the reserve / COVID-19 roster, including Brandon Scherff, David Sharpe, Curtis Samuel and Matt Ioannidis.

If that had been the case a day before the team’s opener against the Los Angeles Chargers, Scherff and Sharpe would have also missed Game 2 as it takes place on Thursday, Rivera noted.

“These guys wouldn’t be eligible, so for me that brings the reality of the rules,” he said, “and I hope that helps. But these young men have to make their decisions.”

Washington ranks second to last in terms of vaccination rates, with just over 70% of players having at least one shot. On Saturday, only the Arizona Cardinals have more players on the reserve / COVID-19 roster, according to Keim.

Earlier this week, Rivera said he was “more than frustrated” with the team’s slow vaccination schedule, adding he was “immunodeficient” after battling cancer last fall.

“I think just stating that I’m immune is hopefully part of their conversation, part of their thinking process,” Rivera said.

According to The Associated Press (h / t Boston.com), the number of NFL players in the COVID-19 vaccination process has reached 80%, with nine teams having 90% or more of their players in this category.