The Pittsburgh Pirates took advantage of a rattled Randy Johnson and a reversed home run call to beat the visiting Arizona Diamondbacks, 5-3, yesterday.

"Big Unit" limited the Pirates to six singles and struck out three in 5 2/3 innings, but lost his cool during an at-bat by Doug Mientkiewicz.

The benches and bullpens emptied briefly when Johnson left the mound and began walking toward home plate, yelling, after Mientkiewicz twice stepped out and was slow to get into the batter's box with a 2-1 count in the third.

Johnson (4-3), who went on to walk Mientkiewicz, insisted he wasn't upset. But later, in the clubhouse, he talked as if he was.

"It didn't bother me at all," Johnson said. "If it would have, he'd probably be on a stretcher and I'd probably be out of the game."

Arizona's Mark Reynolds, who homered twice Sunday, nearly did so again. His drive to rightfield in the second appeared headed for the top of the 21-foot high wall, but a fan wearing a glove leaned several feet over the railing and caught the ball. First base umpire Rob Drake initially ruled it a home run but, after Pirates manager John Russell argued, the umpires huddled briefly and reversed the call, giving Reynolds a double.

Reynolds hit a solo home run in the fourth.

In other games:

* At Washington, Ray Durham, Randy Winn and Bengie Molina had consecutive hits in the sixth inning to break a 1-1 tie and help the Giants sweep the four-game series, 3-2.

Noteworthy

* New York Mets outfielder Ryan Church will go on the disabled list today, still slowed by the effects of a concussion he suffered on May 20 at Atlanta.

* St. Louis righthander Adam Wainwright will be placed on the 15-day disabled list today with an injured right middle finger he suffered in Houston on Saturday. *