A day after appearing to injure his left leg during a passing drill, Randy Moss missed two practices with the New England Patriots on Thursday.

Moss, acquired from Oakland in a trade during the draft, pulled up midway through Wednesday’s practice. Trainers applied ice to his upper left leg, and he later left the field under his own power.

“Randy’s good,” coach Bill Belichick said Thursday. “Day-to-day.”

Asked about a timetable for Moss’ return, Belichick said, “My crystal ball’s no clearer than yours.”

Moss was injured while running under a deep ball thrown by Tom Brady.

Vikings

Rookie running back Adrian Peterson left practice with an injury after taking an elbow to his hip while catching a pass in a drill. He said it wasn’t serious, calling the injury a minor hip pointer.

Peterson missed the first five practices of training camp before signing a five-year, $40.5 million contract on Sunday. His status is day to day, but he’s unlikely to participate in weekend scrimmages against Kansas City.

Cowboys

Terrell Owens returned to practice for the only workout of the day. He was back on the field in full uniform and taking part in drills.

Owens sat out both workouts Wednesday, a day after coach Wade Phillips had the receiver take it easy to rest a sore hamstring. Phillips said Wednesday that Owens wasn’t injured.

Owens missed 14 straight workouts in training camp last year because of a hamstring problem, though an MRI showed no major problems.

Texans

Defensive end Mario Williams missed practice with a tight hamstring, but he and coach Gary Kubiak said it wasn’t serious. Williams watched with a large bandage wrapped around the top of his right leg. The problem began Tuesday morning, and he was pulled from the field halfway through the workout. The No. 1 pick in last year’s draft, Williams said it was mostly a precaution and he wasn’t worried about the problem lingering.

Panthers

The Panthers acquired safety Chris Harris from Chicago for a fifth-round draft pick. Harris, entering his third season, started at both safety positions with the Bears and had five interceptions in the past two seasons. He had an interception in the Bears’ loss to Indianapolis in the Super Bowl.

Harris will likely step in right away as the starter at strong safety next to veteran Mike Minter. Nate Salley had been working with the first team until injuring his right knee in practice Wednesday. Salley sat out practice Thursday and is day to day.

Cardinals

Free agent safety Oliver Celestin signed a one-year contract. The 6-foot, 207-pound Celestin is a four-year NFL veteran.

Bengals

Tight end Nate Lawrie signed a one-year contract to bolster a position severely thinned by injuries in training camp. The Bengals waived undrafted rookie linebacker Cameron Siskowic.