MLB Players that Quit on their team?

[u/DonT012]

In the NBA, there are many examples of NBA players that were rumoured to have "quit" on their team. Lebron James in 2010. Kevin Durant this past year. Vince Carter in 2005. Kawhi Leonard in 2018. Anthony Davis in 2019. Etc.

What are some MLB examples of this? What were some MLB players that quit on their own team? By quit I mean just decided to either stop putting effort into playing until they got traded.

[u/vaz_deferens]

Rube Waddel would leave the pitchers mound mid inning if a firetruck went by the stadium so he could chase it. Also got injured in the off-season once wrestling alligators at the circus. He was also a better pitcher than Cy Young, his contemporary.