Bryce Harper hopes to be back in the lineup for the Washington Nationals Tuesday after missing nearly a week with a tight left calf. He may already have watched his chance of making the Opening Day roster go by the boards, but Harper will join the Nationals fairly early in the season, and his spring training performance has set high expectations.

All around the league, prospects in league with Harper are vying for roster spots, looking to make an impression and fighting for major recognition. Some of the biggest names in baseball this spring have belonged to men yet to establish themselves as MLB players.

Here is a roundup of the most notable such players in spring camps and an update of the impressions they have made thus far.

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