Expect a mixed lineup and no Osvaldo Alonso vs. Timbers

If the Seattle Sounders are to extend their 21-match U.S. Open Cup unbeaten run at Starfire Soccer Stadium, they'll need to do it without a full complement of players. Not only was Osvaldo Alonso effectively ruled out of the match by Sounders head coach Sigi Schmid, but there will also be some new faces in the starting lineup when in Tuesday's match against the Portland Timbers.

"Some players who played on Saturday will be in the lineup, some who didn't necessarily play will be in the starting lineup," Schmid told reporters on Monday. "We have to do a balancing act of keeping people fresh and having some continuity as well."

Alonso apparently hasn't progressed too much since being kept out of Saturday's match with a hamstring injury and Gonzalo Pineda doesn't look too likely either.

The Sounders are also likely to be without Chad Barrett, who's nursing a hamstring injury and Marco Pappa, who's playing a World Cup qualifier on Monday night. Other players who's availability is at least somewhat in doubt include Obafemi Martins (still recovering from nose surgery), Clint Dempsey (has never played at Starfire) and Chad Marshall (unlikely to play three games in a week).