22 year old college seniors who go unsigned, but I believe its only when they would've accepted slot money. If they had plans to go pro in another sport, then they disappear after rollover. So for the #2 pick to be a FA the following season, it sounds like the owner that drafted him may have abandoned the team. Is that correct?
When HBD was still shiny and new, I signed my franchise's all-time best hitter (at the start of Season 2) as a minor league FA for a few thousand dollars. I was the first one that noticed that he was the #10 pick from the season 1 draft, and had gone unsigned after the owner abandoned the team early in the previous season.