DETROIT — Jim Leyland led the Detroit Tigers to some of the best times in franchise history, including three straight playoff appearances, and two trips to the World Series.

After this last playoff loss, he apparently decided it would be best for a younger voice to lead the Tigers.

According to published reports by Ken Rosenthal, among others, the 68-year-old Leyland will announce his retirement at a news conference at 11:30 a.m. Monday. [UPDATE: Leyland stepped down, and will stay in the organization in an unspecified role. CLICK HERE FOR THE FULL STORY.]

Leyland led the Tigers for eight seasons, compiling a record of 700-597, and won two American League pennants. He was one of just three managers, joining Sparky Anderson (1,331 wins) and Hughie Jennings (1,131) to register 700 or more wins with the Tigers.

Leyland was the only the second manager, along with Jennings, to lead the franchise to three straight postseason appearances.

He will retire as the 15th winningest manager in MLB history (1,769), and was the winningest active manager at the time of his retirement.

More information will be added to this story as it becomes available.