CHICAGO – Alfonso Soriano took his game 8 miles to the other side of town and powered the Cubs to a three-game sweep of the punchless White Sox, using both his lively bat and his strong arm.

Soriano threw out a runner at the plate and also homered for the third straight game Sunday as the Cubs blanked the White Sox 3-0.

“I think (it’s) the weather and I feel more comfortable with the team and the city here in Chicago, so I got my swing back and that’s most important,” said Soriano, who got off to a slow start in his first season with the Cubs.

“What you’re seeing here now is the player that he is,” manager Lou Piniella said of the Cubs’ $136 million leadoff man. “He’s swinging the bat and he’s driving the ball. He’s a catalyst out of that leadoff hole as we anticipated.”

Luis Terrero twice tested Soriano’s arm in the fifth inning and the second time – at the plate – he lost. On the previous attempt, Terrero went from first to third on a single by Uribe, beating Soriano’s throw.

White Sox manager Ozzie Guillen was ejected in the eighth inning after a bizarre play on the bases. The White Sox appeared to turn a double play after a Cubs baserunning blunder, but the umpires conferred and ruled interference on White Sox shortstop Juan Uribe. They put all the runners back, loading the bases, and after a long argument with a relatively calm Guillen, Koyie Hill hit a sacrifice fly to make it 3-0.

“I think they got it right,” Guillen said. “One thing, we didn’t lose the game because of that. … This weekend they played better than we did, they made the plays, they pitched right, they had clutch hitting and we didn’t. … If those guys keep playing the way they did against us this weekend, they have a chance.”

Crew chief Joe West said Guillen acted like a gentleman and did not use profanity, but asked to be thrown out of the game.

“You can’t blame him. It was a messed-up play that you don’t see very often. Uribe is not known for trying to cheat or get in somebody’s way, but it happens,” West said. “He got two outs and he ended up getting no outs and that’s why Ozzie said, `You’re just going to have to run me.'”

Cubs lefty Sean Marshall (4-2) allowed five hits in 6 1-3 scoreless innings against the White Sox, who managed two runs in the three-game set and have lost 22 of their last 27.

Bob Howry got three outs for his second save.

The Cubs won five of six meetings this season with the White Sox, the most by either team since their interleague series expanded to six games in 1999.