Eddie Johnson has left the United States national team after suffering a groin injury in Wednesday's scrimmage. He will be replaced by Chris Wondolowski on the roster ahead of Friday's World Cup qualifier against Jamaica.

Johnson will undergo an MRI to determine the extent of the injury and should rejoin the Seattle Sounders ahead of Sunday's match against the Portland Timbers. Of course, Johnson's availability for that match is yet to be determined.

The best-case scenario is probably that the MRI doesn't reveal any serious damage and Johnson is available off the bench against the Timbers. Johnson has four goals in five career games against the Timbers, including goals in three straight appearances against the Sounders' fiercest rivals.

More realistically, though, Johnson is likely out for the Timbers game and will probably be targeting a return against FC Dallas on Oct. 19. That would give him a full 10 days to recover.

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