Obafemi Martins looks set to return for the Sounders this weekend, but he could be without strike partner Clint Dempsey.
Kaka was a surprise absence Wednesday against Toronto, but he has stated that he will play Saturday against Philadelphia.
Sebastian Giovinco was unable to play in the MLS All-Star Game because of a heel injury, but he has a shot at getting back on the pitch for Toronto FC on Saturday.
The Sounders could be getting a number of players back from the Gold Cup this weekend, but Obafemi Martins remains sidelined with a groin injury.
Jozy Altidore has returned to Toronto FC after being dropped from the USMNT Gold Cup roster, but a number of key MLS players won't play this weekend.
A number of star players have already met up with their international teams for the Gold Cup, while a few others are sidelined with injuries.
Javier Morales picked up a red card Wednesday, which means he'll miss this weekend's match against Columbus.