Milton Bradley's temper tantrum was one too many for Chicago Cubs manager Lou Piniella.

Piniella told the mercurial slugger to go home yesterday afternoon after Bradley threw his helmet and went after a water cooler following a fly out in the top of the sixth inning of the Cubs game against the crosstown rival White Sox. Piniella told him to take his uniform off, and the two exchanged words in the tunnel leading up to the Cubs clubhouse.

"I don't like those things to happen, but I'm just tired of watching it," an agitated Piniella said after the Cubs' 5-4 victory. "This has been a common occurrence, and I've looked the other way a lot and I'm tired. I'm not into discipline, I'm really not. I'm going to put his name in the lineup tomorrow and that's it."

Piniella didn't get specific about whether he was tired of Bradley's antics in particular or those of his entire team.

Bradley has already been suspended for one game this season after arguing with umpire Larry Vanover when he was called out on strikes April 16.

With San Diego in the pennant chase in 2007, he tore the anterior cruciate ligament in his right knee when he was spun to the ground by Padres manager Bud Black, who was trying to keep him from umpire Mike Winters.

Bradley was suspended twice during the 2004 season. Once for tossing a bag of balls onto the field following an ejection, and the other for slamming a plastic bottle at the feet of a fan at Dodger Stadium.

INSTANT REPLAY

UMPIRES COMMIT ERROR THURSDAY

Major League Baseball told an umpiring crew yesterday that it mistakenly went to a video review the previous night on a ball hit by Tampa Bay's Pat Burrell that bounced into the stands at Tropicana Field.

It was the first time since baseball began using replay last August that the system was incorrectly employed.

Replay is to be used only on potential home runs involving boundary calls — was the ball fair or foul, did it clear the wall, was there fan interference?

Burrell hit a drive to left-center field in the seventh that bounced into the seats against Philadelphia, and Carl Crawford rounded third and headed home. Umpires went to replay, checking to see whether a fan touched the ball as it hopped up.

After a video review, umpires said the ball cleanly skipped into the seats, calling it a ground-rule double and sending Crawford back to third.

If there had been interference, they could have awarded Crawford home plate.

ELSEWHERE

Blue Jays: Toronto right-hander Roy Halladay, out since June 12 with a mild groin strain, declared himself ready to start Monday against Tampa Bay after throwing a bullpen session yesterday. Yesterday's 54-pitch session was Halladay's second this week.

Yankees: New York outfielder Xavier Nady has reinjured his elbow and appears headed for season-ending surgery. Nady felt pain when making a throw during a rehab assignment at Triple-A Scranton on Thursday night. He has been sidelined since injuring the elbow April 14 at Tampa Bay.

WBC: Kansas City pitcher Sidney Ponson tested positive for a stimulant during the World Baseball Classic and has been banned from international competition for two years. Major League Baseball will not suspend Ponson. He will be treated as a first-time offender and is subject to a medical review and fine.