1 Montreal (1) Marco Di Vaio is Dr. Jekyll at home (eight goals) but Mr. Hyde on the road (one goal)
2 Portland (2)  An impressive unbeaten streak has reached 12 games, but most of those have been ties
3 FC Dallas (3)  Heads to Jeld-Wen for a Best in the West clash few might’ve predicted to start the year
4 Real Salt Lake (5)  MLS Player of the Week Olmes Garcia has four goals this season in just 401 minutes
5 N.Y. Red Bulls (4)  One-point deficit to first-place Impact is a lot bigger considering four more games played
6 Sporting K.C. (6)  Things got awkward leading into an Open Cup game versus USL affiliate Orlando City
7 Colorado (7)  Journeyman Atiba Harris has already matched a personal best for a season with four goals
8 Sounders FC (10) No team in the league has been better over its past eight games than Seattle’s 6-1-1
9 New England (8)  Unbeaten in five and shutout streak has reached 395 minutes, the longest in club history
10 L.A. Galaxy (9)  Keane and Gonzalez can’t return soon enough after back-to-back losses by a combined 8-1
11 Houston (11)  Winless in four, but could get a boost this week in the return of forward Omar Cummings
12 Philadelphia (14) Will forward Jack McInerney (10) still have more goals than D.C. (six) at month’s end?
13 Columbus (12)  Talk about balance: Have scored/allowed six goals at home, scored/allowed 10 on road
14 Vancouver (13) Lost a three-game unbeaten streak and defender Andy O’Brien (hamstring) last week
15 Chicago (15)  Came back from a two-goal deficit to the Timbers to salvage a 2-2 tie at home
16 San Jose (16)  The shocking departure of coach Frank Yallop might’ve been the surprise of the year
17 Toronto FC (17)  Hasn’t beaten D.C. since Oct. 23, 2010, and there might not be a better time than Saturday
18 Chivas USA (18)  Might invest a bit more into a U.S. Open Cup run due to its league struggles
19 D.C. United (19)  Shut out for the third straight game, ninth time all season, and hasn’t won since March 9
Joshua Mayers’ MLS power rankings
Last week’s rankings in parentheses
Rank Team (LW) Comment