CHICAGO -- Chicago Cubs outfielder Rondell White is out for the rest of the season after dislocating his left shoulder sliding headfirst on a steal attempt.

"That was my worst fear," Cubs manager Don Baylor said Sunday of losing White, acquired from Montreal at the trading deadline.

The injury-prone White jammed the shoulder in the bottom of the sixth inning in Saturday's 6-4 victory over the Dodgers. He was thrown out, and he got up holding his left arm.

A trainer worked on White's shoulder when he returned to the dugout, and the outfielder was taken to the hospital shortly after.

White, 28, ends his season hitting .311 with 13 home runs and 61 RBIs. In 19 games with the Cubs, he hit .328 with two homers and seven RBIs.

"It's disappointing. It's a tough break," White said.

Baylor "told me before not to slide headfirst but my instincts took over and I got hurt. From now on, it's going to be feet first."

Baylor constantly preaches sliding feet first to his players.

"A lot of bad things happen" on headfirst slides, Baylor said. "It scares me to death when guys do it."

White, who has slid headfirst his entire career, said he knew immediately something was wrong.

"My hand hit the bag and it just jammed," he said Sunday.

"I knew it was something bad when I got up. Man, it was painful yesterday."

White won't need surgery but will have to keep his left arm immobilized for now. He was examined by the team doctor Sunday.

When White joined the Cubs, he was nursing a sore hamstring injured on an overly aggressive play.

"He gets hurt playing hard," Baylor said. "He's one of those guys who doesn't realize he might get hurt and doesn't think about it."

The Cubs recalled outfielder Roosevelt Brown from Class AAA Iowa to take White's spot on the roster. Brown, 25, was batting .309 in 100 games at Iowa with 32 doubles, 12 homers and 55 RBI.