Former New York Mets star pitcher Matt Harvey announced his retirement from baseball on Friday after nine seasons, per ESPN.com.

“With all the amazing memories came a lot of injuries and tough times,” wrote Harvey in an Instagram post. “The realization that those amazingly powerful moments that make me thrive as a pitcher and help my teammates and city win are no longer possible. Believe me, I wish I could have done more and brought more of those amazing moments back to life. I have to say this is my time to say thank you and goodbye.”

Known as the “Dark Knight,” Harvey burst onto the scene in the Big Apple, recording a 2.36 ERA across his first 36 starts, including an All-Star appearance in 2013. The 34-year-old underwent Tommy John surgery the following year before returning in 2015 and pitching to a 2.71 ERA in 29 starts.

However, Harvey’s career took a disappointing turn after undergoing surgery for thoracic outlet syndrome in 2016, and he could never regain his earlier form. The Connecticut native posted a 5.92 ERA over his final 115 appearances (107 starts), including stints with the Reds, Angels, Royals, and Orioles.

While Harvey’s success may have been brief, it was memorable.

You can find the latest MLB odds on FanDuel Sportsbook.