Sporting Kansas City are now unbeaten in seven consecutive matches - a season high which has seen it jump to sixth in the Eastern Conference.
Porland midfielder Jack Jewsbury will play his first game against his former team; Jewsbury is having a career season with four goals and six assists. He leads the team in both categories.
Sporting Kansas City have shut-outs in four of their past six MLS matches and have allowed only two goals in their past six games.
After a 4-0 road loss at FC Dallas last weekend, Portland are now winless in five straight games.
Sporting are now 4-2-2 against Western Conference teams this season.
After this match in Portland, Sporting KC will play 11 of their next 12 MLS matches at home at LIVESTRONG Sporting Park.
PROBABLE LINEUPS
Portland Timbers (4-4-2):
Perkins; Purdy, Brunner, Danso, Wallace; Zizzo, Chara, Jewsbury, Alhassan; Cooper, Perlaza
INJURY REPORT
OUT: FW Bright Dike (R Achilles rupture); DF David Horst (L hip flexor); MF Peter Lowry (L quadriceps strain); FW Spencer Thompson (R knee);
PROBABLE: DF Mamadou Danso (L shoulder); MF Jack Jewsbury (hamstring strain)
Sporting Kansas City (4-5-1):
Nielsen; Sinovic, Besler, Collin, Myers; Cesar, Espinoza, Stojcev, Sapong, Bravo; Sapong.
INJURY REPORT
OUT: FW Konrad Warzycha (R knee surgery); MF Craig Rocastle (R knee sprain); MF Davy Arnaud (R groin strain)
Prediction
Portland Timbers 1-1 Kansas City Wizards 
