Less than two innings into just his eighth start of the season, Mark Prior was out of the game last night and most likely out of the Chicago Cubs' rotation again.

"I don't know what I've got going right now," Prior said after leaving in the second inning of the Cubs' 4-1 win over visiting Milwaukee with discomfort in his pitching elbow.

Although the Cubs rallied over the Brewers, Prior's status put a damper on any good feelings over the win.

"You can't get any more worried than sick to your stomach. You just hope it's nothing," Cubs Manager Dusty Baker said.

Prior is scheduled for an MRI today, the latest setback for him and the team he pitches for. Prior missed the first two months this season with a sore right Achilles' tendon and tender elbow.

"It's something I've been dealing with off and on since it happened in spring training," Prior said.

"Hopefully we can get some answers this time on what it really is. To be honest, I can't tell you where I'm at or where I'm going to be. . . . Trust me, I want to know what is going on more than anybody. Going in start after start not knowing what I was going to have -- being up and being down -- it's been very frustrating."

Derrek Lee homered in the second and hit an RBI double in a three-run sixth for the Cubs.

Glendon Rusch (5-1), 1-12 with the Brewers last season, allowed just three hits in 51/3 scoreless innings after replacing Prior.

* DODGERS 4, DIAMONDBACKS 3: Shawn Green hit a grand slam in the eighth inning, powering Los Angeles in Phoenix.

Once again, Arizona's bullpen wasted a superlative effort by Randy Johnson, giving up all four runs after the left-hander was taken out of the game.

Johnson, showing little wear from a scoreless inning in the All-Star Game two days earlier, struck out nine and had an RBI single in seven scoreless innings. He increased his major league-leading strikeout total to 154.

* GIANTS 7, ROCKIES 5: Shawn Chacon hit J.T. Snow with a pitch with the bases loaded for the go-ahead run in San Francisco's four-run ninth inning in Denver.

Colorado led 4-3 headed into the ninth behind five-plus solid innings from Jason Jennings, but Chacon (1-6) couldn't hold it. It was Chacon's seventh blown save in 27 chances.

* CARDINALS 7, REDS 2: Albert Pujols and Scott Rolen each hit two-run homers to lead St. Louis on the road.

Matt Morris (10-6) settled down after giving up hits to the first two batters, and worked out of his own jam in the sixth for his second consecutive win against Cincinnati.

He gave up eight hits, one walk and struck out four in six innings.

* METS 3, PHILLIES 2: Ty Wigginton hit back to pitcher Roberto Hernandez (1-3), who knocked down the ball with his bare hand. But he bounced his throw home as pinch runner Vance Wilson slid across the plate with the winning run in the 11th inning at Shea Stadium.

* BRAVES 8, EXPOS 0: Marcus Giles, recovered from a broken collarbone, hit two doubles in his first game in two months and Jaret Wright (7-5) won his fifth straight by working seven scoreless innings.