Monday evening, Alex Rodriguez was greeted by boos in Chicago as he took his first at-bat just hours after MLB announced it would suspend him for 211 games. He answered those boos with a single to left field. The New York Yankee announced he would be appealing the decision and vowed to defend himself against allegations he used performance-enhancing drugs.

He is eligible to play until a decision is reached on his appeal. During a press conference in Chicago earlier today, Rodriguez said, “We have a process. This is America. You have an opportunity to defend yourself.”

Rodriguez has previously admitted to using performance-enhancing drugs in 2001-2003. He has repeatedly denied using them since then.