Ex-S.F. Giants outfielder Mac Williamson says his career was ruined by the old placement of the bullpen mounds at Oracle Park in San Francisco ... and now, he's suing over it.
In new court docs, obtained by TMZ Sports, Williamson claims the company that financed and helped create Oracle Park knew the field design posed significant injury risks ... but did nothing about it.
And, Williamson says that all led to a catastrophic head injury that ultimately led to the end of his MLB career.
Williamson was attempting to catch a fly ball back on April 24, 2018 .