*Four young D.C. United players who share a house in Northern Virginia might all be in the starting lineup tonight at Columbus.

*United’s Branko Boskovic didn’t travel to Ohio because of a calf injury.

*The game-time weather outlook at Crew Stadium: clear skies, 84 degrees.

*Local TV: Comcast SportsNet at 7:30 p.m. ET.

*Big trade in MLS late Friday: The Vancouver Whitecaps sent forward Eric Hassli to deal-happy Toronto FC for a first-round draft pick and an international roster slot. Read the gen­esis of the deal.

*Aside from United (33), other key Eastern Conference matches involving top-five clubs:

New York Red Bulls (35 points) vs. Philadelphia, 2:30 (ESPN)

Houston Dynamo (31) vs. Montreal, 8:30

Sporting Kansas City (36) vs. New England, 8:30

*D.C. United Women, a second-year club in the W-League, is hosting the Eastern Conference tournament at Maryland SoccerPlex this weekend. Details here.

*Americans abroad, Mexican season openers:

Edgar Castillo and Joe Corona had starting assignments in Tijuana’s 2-0 victory over Puebla. Corona departed in the 56th minute and Castillo left in the 62nd, replaced by American Greg Garza. DaMarcus Beasley started for Puebla but came off in the 22nd minute with an injury.

Defender Jonathan Bornstein played the last four-plus minutes in Tigres’ 4-0 victory at Jaguares.