well it wasn't easy but i did find a couple of articles where i guess i/we could speculate with a pretty good theory....
as Gut said above, probably to be closer stateside just in case a MLB team does make an offer.... according to these 2 articles he is only signed with the Diablos for 5 games/pitching starts and or from April 11 thru May 8....
https://spectrumnews1.com/ca/la-west...r-mexican-team
and
https://www.espn.com/mlb/story/_/id/...-league-return
Bauer, 33, said Monday in a post on X, formerly Twitter, that he has also agreed to pitch five games for Diablos Rojos from April 11 to May 8 "in lieu of a traditional spring training period as it's the best way for me to stay ready to pitch."
he pitched well in Japan going 10-4 and an era of 2.76
https://npb.jp/bis/eng/players/33235157.html
so i agree with Gut here, and here is my theory of his actions.... pitches pretty well in Japan, he probably thinks good enough to get a call from a MLB team ( and it is IMO ).... but no call.... so signs this 5 game contract in Mexico to keep himself available and ready for a call up and being close stateside.....
i see a lot of rumors saying he is some sort of cancer in the locker room/dugout.... but i have read and seen conflicting reports about that too....??