In the not-too-distant past, it was relatively rare for organizations to break camp with their very best prospects on the roster. It still happened at times, but MLB's service time structure was set up such that keeping a top prospect in the minors for even two weeks to begin the season effectively ensured that he'd be controllable for seven years rather than the standard six. There were obvious exceptions to this thinking -- Atlanta fans surely remember Jason Heyward breaking camp as a 20-year-old and belting a three-run homer on Opening Day -- but there were far more cases of keeping a player in the minors to buy the extra year.
Which Top Prospects Could Be On 2026 Opening Day Rosters?