Whether it's a revolving cast of characters or a few who can't get the job done, every team has an area weighing it down. Which have hurt the worst?
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The Mariners didn't make any big splashes this winter, but bringing in Jean Segura and others makes them a safe bet to improve.
Andrew Benintendi and Dansby Swanson have already produced in the majors, but they're not the only prospects who can help their clubs this season.
Felix Hernandez, ahead of his usual spring training schedule due to his World Baseball Classic commitment, is focused on bouncing back from a rocky and injury-plagued 2016 campaign.
Vogelbach heads to camp with a prime chance to win the heavier part of a first-base platoon with veteran Danny Valencia.
Invitations to camp can mean first glances for prospects and last chances for veterans like Josh Hamilton. Who should be on your spring scorecard?