Jacoby Ford may not be ready to play for the Raiders by the time the regular season begins.
Ford is expected to miss time with a sprained left foot. Ford underwent an MRI on Saturday.
He missed time with a similar injury last season, but Oakland hopes it isn't as serious this time.
"Obviously, it looks like Jacoby is going to miss a little bit of time, don't know exactly to what extent yet," coach Dennis Allen said. "We're still seeing where he's at."