Mario, Stevie among Bills not practicing

ORCHARD PARK, N.Y. -- Defensive end Mario Williams (ankle) and wide receiver Stevie Johnson (hamstring) were among several Buffalo Bills not practicing Wednesday.

Williams stretched with his teammates early in practice, but then departed for the indoor facility to work with trainers. ESPN NFL Insider Adam Schefter reported Tuesday that Williams sprained his ankle in Sunday's loss to the New York Jets and should play Sunday against the Baltimore Ravens unless his condition does not improve.

Coach Doug Marrone said Monday the team believes Williams and Johnson, who tweaked his hamstring Sunday but stayed in the game, "will be fine."

Running back C.J. Spiller, cornerback Leodis McKelvin and defensive tackle Marcell Dareus, who were all injured in Sunday's game and did not return, participated in the portion of practice open to reporters Wednesday.

Meanwhile, defensive tackle Kyle Williams did not participate in Wednesday's practice, along with starting right guard Kraig Urbik, who missed four plays Sunday with a knee injury.

Cornerback Stephon Gilmore stretched with his teammates but later went inside to work with trainers. Safety Jairus Byrd appeared limited, with Jim Leonhard and Da'Norris Searcy lining up at safety early in practice. Aaron Williams remained at cornerback.

Wide receiver Marquise Goodwin, who broke his hand in Week 1, stayed on the field for positional drills Wednesday. Cornerback Ron Brooks, who fractured his foot in the opener, watched practice from the sideline.