CHICAGO -- Kevin Mench homered early and homered late.
Mench also homered in the first inning as the Rangers won for the ninth time in 13 games and sent the White Sox to their third loss in a row, matching a season high.
"The last one was right over the plate, so I took it the best way I could, and I fortunately hit it out," Mench said. "It was just one of those nights."
Slowed earlier this season after twice being hit on the left elbow with pitches, Mench has homered three times in the last two games and has six for the season.
"He started it and he finished it," Rangers manager Buck Showalter said. "When he collides with the ball, it jumps. He's a strong young man."
Nick Regilio (1-1) got his first major-league win despite allowing a tying home run to pinch-hitter Tadahito Iguchi in the eighth. Francisco Cordero pitched a perfect ninth for his 13th save in 15 chances.
"We came back and tied it and gave us a chance to win," Chicago manager Ozzie Guillen said. "Iguchi's been a good player all year long. Everything we've asked him to do, he does it."
But Texas drove out Orlando Hernandez after 2 2/3 innings. Hernandez, who has won four straight decisions, surrendered the first-inning solo homer to Mench.
"I remember facing him before in New York. He was just unhittable. We were fortunate tonight to get him out of there early," Mench said.
Hernandez struggled with his control, giving up six runs, seven hits and four walks.
"It's a bad day for me," Hernandez said. "They were swinging, and everybody hit it."
Texas regained the lead with a three-run third as Mark Teixeira singled, Hank Blalock doubled him home and Alfonso Soriano hit an RBI single. After Hidalgo walked and Nix struck out, Rod Barajas came through with an RBI single that made it 6-4 and finished Hernandez.
Aaron Rowand's third hit, a two-out RBI double in the fifth, cut the lead to one off Park, who gave up five runs and six hits in six innings.
Chicago's clubhouse was silent after the game, devoid of the familiar postgame music.
"We've lost three before," Guillen said. "We've got to try to cut the losing streak as quickly as we can."
- Mench has four career multihomer games. His previous one came Sept. 10 against the Blue Jays.
- Showalter returned after missing Sunday's game at Minnesota to attend the high school graduation of his daughter.
- Rangers SS Michael Young was out of the lineup with a sore back, a condition that had forced him out in the fourth inning Sunday against the Twins. Mark DeRosa replaced him.
- Dellucci, who entered leading the AL in walks, added three more, giving him 35. He also reached on a single but never made it to second base all night. He was thrown out stealing, picked off first, called out as he tried to steal second when Mench interfered at the plate as Pierzynski was throwing to the base and then forced out on a grounder. Dellucci now has four three-walk games this season.
- Jermaine Dye and Iguchi were out of Chicago's starting lineup, replaced by Timo Perez and Willie Harris. Dye pinch hit in the ninth.
- The temperature at game time was 51 degrees with a 12-mph wind.
- Hernandez's outing was his shortest since going just two innings against the Blue Jays last July 27 while with the Yankees. He left that game with a tight hamstring.