Washington is taking a proactive approach with free-agent offensive tackle Donald Penn.
Rapoport expanded on the signing in the context of left tackle Trent Williams' ongoing holdout:
He had reported last Thursday that Penn was en route to work out with Washington.
On Friday, Rapoport reported Penn would make $5.03 million if he was the Redskins' starting tackle; otherwise, the only guarantee is the $250,000 signing bonus and $1.03 million base salary.
The signing comes after the 36-year-old "mutually agreed to part ways" with Oakland, where he spent five seasons, in March. Penn was named to the Pro Bowl in 2016 and 2017 but was released to presumably make room for Raiders new signing Trent Brown.
Penn's position with the Redskins, it seems, hinges on Williams' status. The seven-time Pro Bowler has not reported to training camp and missed mandatory minicamp "over issues with the organization's medical staff," ESPN's John Keim reported last week.