Real Salt Lake vs. Colorado Rapids (Friday, 5 p.m. PT; UniMas)
RSL vs. Colorado features a battle between the Western Conference’s second- and third-place teams, as each side continues its push to catch FC Dallas and a potential shot at the MLS Supporters’ Shield. Friday’s game is the rubber match for the Rocky Mountain Cup, with each team winning 1-0 at home. The Rapids have never won at Rio Tinto Stadium, sporting a 0-7-4 record in league play.
D.C. United vs. Chicago Fire (Saturday, 4 p.m. PT; MLS LIVE)
This is the second meeting of the season for D.