Last Week:  Mayra Pantoja of Forest Grove girls soccer was The Oregonian's athlete of the week for Oct. 27-Nov. 2.  It was a team effort as the 31st-seeded Vikings stunned No. 2 South Medford with a 1-0 victory in the opening round of the Class 6A state playoffs, but the afternoon's brightest star was unquestionably Pantoja. The Panthers ...