X-rays on Wilson's right knee came back negative Tuesday, Mark Sheldon of MLB.com reports.
Wilson made an early exit from his relief appearance in Tuesday's 6-4 loss to the Padres after taking a line drive off the inside of his right knee, but he appears to have escaped the incident without suffering any major damage. He likely won't pitch for a few days as he deals with lingering soreness, but a trip to the injured list doesn't seem necessary.