THE ASSOCIATED PRESS

DAVIE, Fla. -- Miami Dolphins running back Ronnie Brown will likely miss Saturday's exhibition against the Kansas City Chiefs with a strained right thumb.

Dolphins coach Tony Sparano said Thursday that Brown is not expected to play.

Brown, who was injured in Saturday's game against the Jacksonville Jaguars, has been wearing a wrap around his thumb and has not participated in contact drills this week.

"It's nothing major. It just hurts a little when I try to make catches and stuff," Brown said earlier in the week. "I'll be fine when the regular season rolls around."

Last year, Brown was on pace for a career year before he tore a ligament in his right knee and had season-ending surgery.

Ricky Williams has been Miami's best offensive option in the pre-season, leading the team in rushing through the first two games.