SANTA CLARA, Calif., Aug. 23 (UPI) -- The San Francisco 49ers will be without defensive back Tony Parish for a minimum of two weeks.
The team went to practice Monday without him for the second straight day. He has a torn calf muscle.
The San Jose (Calif.) Mercury News said it is unknown how Parish was injured, but it may have begun when he was kicked in the lower leg by a teammate during practice last week.
An MRI Sunday revealed the extent of the injury.
Coach Dennis Erickson also told reporters center Brock Gutierrez, who was injured in the pre-season contest at Chicago Saturday, has a torn MCL in his right knee and is expected to miss up to four weeks.
He is expected to be replaced by Jerome Newberry, but he is recovering from arthroscopic knee surgery he underwent two weeks ago, and has yet to be cleared to practice again.
Erickson said Dwayne Ledford and Rob Murphy also are available.