[서울=RNX뉴스] 박은경 기자 = The 35-year-old Astros pitcher has admitted to having social anxiety and depression in the past.
According to NJ.com, fans at Yankee Stadium were heckling him about his disorder before Game 4 of the ALCS.
One fan was even ejected from the game by police.
Greinke, who was in the bullpen at the time, later said he wasn't aware of the mocking.
The Astros now have a 3-1 series lead after winning the game, 8-3.
This is not the first time Yankees fans have caused issues during the team's playoff run this year.
In the previous series, Twins pitcher Tyler Duffey claimed he was cursed at and had beer thrown on him.
Astros outfielder Josh Reddick also said fans tossed baseballs onto the field during game 3.
Astros Manager A.J. Hinch, via statement