CHICAGO (AP) – Shawn Chacon throttled Chicago’s punchless offense and Alex Rodriguez hit a two-run double Saturday as the New York Yankees blanked the White Sox 5-0, sending them to a season-high seventh straight loss.

Chacon (2-1) allowed four hits in eight sharp innings for his second straight win, and the Yankees again beat former teammate Orlando Hernandez, who had a frustrating day at U.S. Cellular Field.

El Duque was warned for throwing a pitch behind Rodriguez, committed his first two errors in 109 games and was also called for a balk. He gave up six hits and five runs – four earned – in six-plus innings.

Hernandez (8-6), who went 61-40 in the regular season and 9-3 in the postseason during two stints with the Yankees from 1998-04, lost to his former team for the second time this month. He’s dropped three straight starts and five of six decisions.

Chicago has scored two runs in the last 36 innings, and the AL Central leaders have lost 15 of 21 home games.

Felix Rodriguez finished the four-hitter for the Yankees, who have allowed only seven runs in five games against the White Sox this season.

Derek Jeter and Bernie Williams singled in the fourth for the first two hits off Hernandez. He then gloved Gary Sheffield’s comebacker and tried to start a double play, but his throw sailed untouched into center field because nobody covered second base. Still, Hernandez was charged with his first error since Aug. 17, 1999.

Jeter scored and Williams went to third before Rodriguez hit a two-run double past the bag at third.

It momentarily got worse for Hernandez when he was called for a balk, sending Rodriguez to third. But catcher A.J. Pierzynski picked the Yankees’ star off third before Jason Giambi was called out on strikes, extending his hitless streak to a career-worst 20 at-bats.

Williams’ bases-loaded sacrifice fly put New York up 4-0 in the fifth.

Tino Martinez hit an RBI single to score Jorge Posada, who doubled and moved up on a wild pitch, to make it 5-0 and finish Hernandez in the seventh.

Chicago squandered a big chance in the third after Geoff Blum singled leading off and Juan Uribe walked after a 13-pitch at-bat. With the Yankees expecting a bunt, Blum broke for third and Timo Perez swung away, popping to Jeter at shortstop in what turned into an easy double play for the Yankees.

Hernandez sent the first pitch of the second inning sailing behind Rodriguez’s shoulders, immediately drawing a warning from plate umpire Larry Vanover. Hernandez threw up his arms to say it wasn’t on purpose.

After a close pitch to the next batter, Hideki Matsui, was called a ball to make the count 3-2, Hernandez came all the way to the plate and began talking to Vanover. After the inning, Hernandez again chatted with Vanover, who slapped the pitcher on the shoulder as if to say he understood his argument.

Hernandez was charged for his second error in the sixth when first base umpire Randy Marsh ruled he missed the bag after taking a throw from first baseman Blum on Matsui’s grounder. Hernandez and manager Ozzie Guillen argued, and replays showed Hernandez’s toe appeared to clip the bag as he crossed it.

Notes: Rodriguez was 1-for-13 before his fourth-inning double. … Giambi was 0-for-2. He left with a bruised right calf in the sixth. … The White Sox played a second straight game without their leading run producer, Paul Konerko, who strained his back in batting practice Friday. He leads the team in homers and RBIs. … Posada’s double in the seventh was his 1,000th major league hit.

AP-ES-08-20-05 1644EDT

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