DENVER (AP) _ After just one season on the job, Colorado Rockies manager Jim Leyland is talking about leaving, and the team's owners are hinting that he has already decided to resign.

Leyland, disappointed with Rockies' poor performance, is considering retiring as a baseball manager altogether, according to Denver newspaper reports. After 35 years in professional baseball, Leyland said he no longer is certain he has the drive to lead a major league team.

Leyland told The Denver Post he has held recent discussions with Rockies owner Jerry McMorris about leaving at the end of the season.

``I'm seriously considering retiring from managing,'' Leyland said Wednesday, before an afternoon game against the Pittsburgh Pirates.

The Denver Rocky Mountain News reported today that Leyland has already decided to retire. Leyland made his decision and met with McMorris when the team returned from its last road trip to inform him, according to the News.

``It has nothing to do with having trouble communicating with the players. I love my players on this team. And, believe me, it has nothing to do with the ownership of this team. I love this ownership,'' Leyland told the Post. ``My problem is simply a case of whether I have all the ingredients necessary to do everything it takes to do this job anymore. I just don't know. It's something I'm tossing and turning about every night. I just don't know.''

McMorris said he is aware that Leyland is unhappy.

``I really don't have any comment on Jim Leyland,'' he said. ``Jim Leyland is our manager. Jim Leyland is frustrated. He has a three-year contract with the Rockies.

``I've been talking to Jim Leyland about his frustrations for quite some time. It's really up to Jim Leyland to say what he has to say when he wants to do it. Jim has to make the decision.''

The Rockies, who had high hopes of competing for a playoff spot this year, are in last place of the National League West.

Although the Detroit Tigers and Los Angeles Dodgers both recruited Leyland before he joined the Rockies a year ago, he insisted his departure would indicate the end of a managerial career whose highlights have included more than 1,000 major league victories and a World Series championship with Florida in 1997.

``If I decide not to manage here in Colorado, I think that would be the end of it for me as a manager,'' Leyland said. ``I can assure you, I won't be going anywhere else to manage.''