(Tualatin, OR)  --  The Timbers will be short-handed when they host the Chicago Fire tonight.  Captain Liam Ridgewell is likely out for six to eight weeks with a quad injury.  Right back Alvas Powell and winger Darren Mattocks have left Portland to play with the Jamaica National Team.  Portland is 7-and-7 and 5.  Chicago leads the MLS with an 11-and-3 and 4 record.