The Giants' decision on Wednesday to designate Schwartz to return from injured reserve means that he won't be eligible to play until Nov. 3 against Indianapolis. The six-year veteran signed a $16.8 million free agent contract in the offseason and dislocated his right big toe on Aug. 22 against the Jets.
Snyder is a 10-year veteran, playing nine seasons with the San Francisco 49ers. He has appeared in 137 regular-season games with 87 starts, including four at left guard last season. He was waived by the 49ers.