Wait for the audible. Head coach Jay Gruden says there’s “no guarantee” that Washington’s newest linebacker will ever take the field in a Redskins uniform. Foster was arrested and charged with domestic violence in Tampa, Florida, over the weekend — his third arrest this year — leading to his sacking by the San Francisco 49ers. Washington quickly signed Foster, a 2017 first-round pick, explaining they’d let the NFL investigate the charges before allowing him to suit up. “We’ll deal with the outcry,” said Gruden, predicting a potential backlash.