Power Rankings: Yankees' No. 1 streak now four

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It's been a season of streaks atop the MLB Power Rankings, and the New York Yankees are the latest team riding a long run at No. 1.

The Yankees, who went 4-2 last week, remain the top-ranked team for the fourth straight week. Their current run comes after the Los Angeles Dodgers, now at No. 5, enjoyed 12 straight weeks in the top spot.

Below the Yankees, the Philadelphia Phillies traded and the Los Angeles Angels traded positions -- the Phils moved up to No. 2 while the Angels fell to No. 3 -- and the St. Louis Cardinals, baseball's hottest team, climbed to No. 4. The Cardinals, 20-6 in August, haven't lost consecutive games since July 25-26.

The San Francisco Giants, who swept the Colorado Rockies over the weekend to pull even in the NL wild-card race, are the U.S. Army Team of the Week. The Giants moved up three spots to No. 8 to tie the Minnesota Twins for the biggest leap in the rankings.

One of our panelists, Enrique Rojas of ESPNDeportes.com, wrote the comments below. Meanwhile, you can rank the teams yourself.

Tune in to "Baseball Tonight" every Monday on ESPN to see the week's U.S. Army Power Rankings.

2009 Power Rankings: August 31
 RK (LW)TEAMRECCOMMENT
New York Yankees1 (1)Yankees82-48CC Sabathia went 5-0 with a 2.64 ERA in August, and is now 10-0, 1.85 in that month over the past two seasons.
Philadelphia Phillies2 (3)Phillies75-53Phillies pitchers have a 2.75 ERA (52 runs in 170.1 IP) since Aug. 11.
Los Angeles Angels3 (2)Angels77-52Scott Kazmir is 15-5 in his career against the Angels' AL West rivals.
St. Louis Cardinals4 (6)Cardinals77-55John Smoltz, released by Boston, is 1-0 with an 0.82 ERA and 15 K's in 11 innings with the Cardinals.
Los Angeles Dodgers5 (4)Dodgers78-53The Dodgers' 35-16 record against NL West foes is the main reason for their long run in first place.
Boston Red Sox6 (5)Red Sox76-54Opposing hitters are 1-for-12 with 9 K's with the bases loaded against Jonathan Papelbon this season.
Texas Rangers7 (7)Rangers72-57Scott Feldman (14-4) is 10-1 on the road and tied with Sabathia for the most road victories in the majors.
San Francisco Giants8 (11)Giants72-59Tim Lincecum has pitched at least eight shutout innings on six occasions this season.
Colorado Rockies9 (8)Rockies72-59The Rockies were 16-7 in August until their current five-game losing streak.
Tampa Bay Rays10 (9)Rays70-59Carl Crawford has 54 steals, reaching 50 for the fifth time in his career.
Detroit Tigers11 (12)Tigers69-60Magglio Ordonez only needs 47 more plate appearances to secure his $18 million option for 2010.
Atlanta Braves12 (10)Braves68-62Matt Diaz is hitting .398 (49-for-123), the NL's third-best average, against left-handed pitchers.
Florida Marlins13 (13)Marlins68-62Hanley Ramirez, at .359, has a chance to surpass Rico Carty (.366 in 1970) for the highest batting average among Dominican players.
Minnesota Twins14 (17)Twins65-65Denard Span is hitting .438 (21-for-48) as the Twins have won nine of their past 12 games.
Chicago Cubs15 (15)Cubs65-63Carlos Zambrano has allowed 18 hits and 12 earned runs in 7 2/3 innings since his return from the DL.
Seattle Mariners16 (16)Mariners68-63The Mariners are 20-11 without Ichiro Suzuki in the lineup since 2001.
Chicago White Sox17 (14)White Sox64-67Mark Buehrle has not won in his seven starts since pitching a perfect game July 23.
Milwaukee Brewers18 (19)Brewers64-66Trevor Hoffman needs one save to reach 30 for the 14th time in his career.
Houston Astros19 (18)Astros62-68Wandy Rodriguez has allowed more than one run in only two of his past 11 starts.
Toronto Blue Jays20 (20)Blue Jays58-70Roy Halladay went 2-4 with a 4.71 ERA in August as the Jays have won only nine of 25 games.
New York Mets21 (21)Mets59-72Despite the Mets' struggles, Luis Castillo has hit .361 with a .433 OBP in the second half.
Cleveland Indians22 (22)Indians58-72Andy Marte has three homers in six games after going 13 months without a major league home run.
Arizona Diamondbacks23 (24)Diamondbacks59-72Mark Reynolds is the first D-backs player with at least 40 homers in a season since Luis Gonzalez hit 57 in 2001.
Oakland Athletics24 (23)Athletics57-73Brett Tomko is 2-0 with a 1.62 ERA since joining the A's rotation.
Cincinnati Reds25 (26)Reds56-73Reds pitchers lead the majors with 111 runs allowed in the first inning.
Baltimore Orioles26 (27)Orioles54-77Felix Pie has hit .383 with five homers and 12 RBIs over the past 16 games.
Pittsburgh Pirates27 (25)Pirates53-75Garrett Jones leads all major league rookies in homers (16) and slugging (.613).
San Diego Padres28 (28)Padres56-76Promising young pitcher Mat Latos has lost three straight decisions after winning four of his first five.
Kansas City Royals29 (29)Royals50-80Zack Greinke leads the majors with three shutouts and six complete games.
Washington Nationals30 (30)Nationals46-85Nyjer Morgan has been a tremendous pickup for the Nats, hitting .365 with a .416 OBP in 38 games.