Derek Jeter

Roster expansion offers Orioles' first-time big leaguers valuable experience on, off field

Roster expansion offers Orioles' first-time big leaguers valuable experience on, off field

Few first-time big leaguers experience the kind of September that Trey Mancini did last year, when he went from the team’s reserve call-up camp in Sarasota, Fla., to the postseason roster for the Orioles’ America League wild-card game in Toronto over a 17-day span.

So it’s difficult to compare the impact that the September call-up had on Mancini — and the foundation it set for his sparkling rookie season this year — to what others experience. But when rosters expand Friday, the Orioles will go through the annual routine of choosing which promising farmhands could be best served by experiencing the major leagues during the season’s final full month.

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