The suspension comes at a time when the Sounders defense already is weakened by injuries that also will keep out defenders Leo Gonzalez, Patrick Ianni, Adam Johansson and goalkeeper Michael Gspurning.
"We're a little bit thin in the back," Schmid said. "There are guys that can play on an as-needed basis. (Brad) Evans can play back there. Roger (Levesque) can play back there. Andy Rose has played some as a central defender. There are guys that can play back there if we need it."