Is this him?
https://www.perfectgame.org/players/...aspx?ID=493382
He's in the database as a real person (so it's not an issue with the game's fictional player creation). I only see once instance of him so not sure how he came in twice. But given he's in the OOTP database once, that also eliminates a database duplicate as the cause of the issue.
Did you elect to draft him twice or did you draft another player in one of those rounds and the game "lost" that player and just replicated this guy in the drafted guys spot? One other question, did you investigate this individual in any way prior to the draft? To open his record, click on his record? It is possible to clone a player and if you entered the record as commish and were moving fast, you may have cloned him in error. Just trying to brainstorm...
As for your game, may want to edit the first name and think of him as a twin and see how their careers diverge.
When you have time, can you take a screenshot of the player(s) editor page(s). Oh, to attach pics, try hitting "Go Advanced," scroll down to the button "Manage Attachments", a pop-up appears and you can then navigate to upload a screenshot (wherever it saves on your computer). I just want to check those shots against the database. If I can't see anything that provides insight from those shots, I'm baffled.