Former San Francisco Giants outfielder Mac Williamson is suing the club over a concussion suffered in 2018 that he says ultimately ended his career, according to Henry Schulman of the San Francisco Chronicle.

The injury occurred when Williamson tripped over an Oracle Park bullpen mound and hit his head on the wall. Williamson says he still experiences symptoms stemming from the incident.

"The concussion ended my career and left me with lifelong injuries that have also taken a significant toll on my personal life," he said in a statement through his attorney, Randy Erlewine. "I suffer nausea, trouble sleeping, mood swings, and other issues.

"I wake up every day hoping that today is a better day and that I will get closer to how I felt before the injury."

The lawsuit was filed in Superior Court in San Francisco, with Williamson alleging negligence while seeking unspecified damages. The suit describes Williamson as "one of the best power hitters" in MLB at the time of his injury. Erlewine said his client could have earned "tens of millions of dollars" if he didn't suffer the concussion.

The Giants responded in a statement.

"MLB and its clubs have a longstanding practice of addressing claims arising from player injuries through the collectively bargained grievance procedure and the worker’s compensation system," the club said. "... Williamson’s claims are properly resolved through these processes, not through the courts."

Over parts of five seasons, Williamson hit .203/.282/.348 with 17 home runs, 10 doubles, and 50 RBIs in 160 games.

The 30-year-old played 40 contests split between the Giants and Seattle Mariners in 2019.