Corey Seager has had an excellent first 10 games in the majors, but Los Angeles Dodgers manager Don Mattingly made a point of clarifying that he has yet to earn a starting position on the team.

Seager, who made his major-league debut on Sept. 3, has been starting at shortstop for the Dodgers while injured shortstop Jimmy Rollins remains sidelined with a jammed knuckle.

Mattingly says he plans to start the veteran over Seager when he's ready for action.

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"When Jimmy gets back, we plan on playing Jimmy," Mattingly said.

In his first 10 major-league contests, Seager has hit .412/.524/.647 with a home run and seven RBI.

The Dodgers have been equally impressed by the 21-year-old infielder's composure as they have been with his on-field performance.

"He's been pretty good," Mattingly said. "Kind of what we expected. He's pretty mature, doesn't get too excited. He's got a good eye. He can hit both sides. He doesn't scare me at all, I'll tell you that. I'm not afraid to put him out there."

Los Angeles Times