MLS: Weekend Previews Saturday, March 23 (4:00 p.m. ET) CHICAGO at COLUMBUS (ABC Sports, live) Key players out: Chicago: D Jim Curtin (ankle sprain-L), F Hristo Stoitchkov (hernia); Columbus: D Mike Lapper (sprained MCL-R). Referee: Kevin Stott. Saturday, March 23 (7:30 p.m. ET) NEW ENGLAND at METROSTARS (MSG, live, 7:30 p.m. ET; FOX Sports New England, live, 7:30 p.m. ET) Key players out: New England: M Braeden Cloutier (knee MCL strain-R), M Tony Frias (grade-two ankle strain-R), M Shaun Tsakiris (hamstring strain-L); MetroStars: F Martin Klinger (lower back pain). Referee: Michael Kennedy. Saturday, March 23 (7:00 p.m. CT) COLORADO at KANSAS CITY (FOX Sports Rocky Mountain, delay, 8 p.m. MT) Key players out: Colorado: none; Kansas City: M Chris Klein (ACL surgery-R), M Eric Quill (strained hamstring-L). Referee: Alex Prus. Saturday, March 23 (7:30 p.m. CT) SAN JOSE at DALLAS (FOX Sports Bay Area, delay, 7 p.m. PT) Key players out: San Jose: M Manny Lagos (red card suspension), D/M Scott Bower (leg surgery); Dallas: M Joselito Vaca (ankle sprain-R), M Oscar Pareja (red card suspension). Referee: Rich Grady. Saturday, March 23 (7:00 p.m., PT) D.C. UNITED at LOS ANGELES (Comcast, live 10 p.m. ET). Key players out: D.C. United: M Ben Olsen (ankle surgery), F Jaime Moreno (knee surgery); Los Angeles: F Isaias Bardales (knee sprain-R), M Peter Vagenas (lower back strain). Referee: Noel Kenny.