Williams, injured while carrying the ball against Green Bay in the Cardinals' preseason game Friday night, was pushing Beanie Wells for playing time. He projected as a potential starter, perhaps as early as this season.
The Cardinals should still expect significant contributions from their 2011 draft class.
It's an upset if Patrick Peterson doesn't take over as the starting left cornerback early in the season.
Third-rounder Rob Housler needs seasoning as a blocker, but his receiving skills have stood out during preseason. He caught a touchdown pass in the opener and led Arizona in receptions with five against Green Bay.
Anthony Sherman made an immediate positive impression at fullback early in camp. He caught a pass for a 6-yard gain on third-and-2 against the Packers.
David Carter went from projected defensive end to No. 2 nose tackle early in camp.
Receiver DeMarco Sampson, the Cardinals' seventh-round pick, has continued to produce during preseason games after impressing during camp practices. He had three receptions for 68 yards against the Packers, including one for a 45-yard gain.
The chart shows the Cardinals' 2011 draft class, sorted by order chosen.