FTX founder Sam Bankman-Fried, known for his appetite for risky bets, is mulling perhaps his biggest gamble yet: testifying in his own defense.

The onetime crypto star, on trial in New York on allegations of fraud, money laundering and other offenses, has spent nearly three weeks watching some of his former close friends and colleagues take the stand and offer what appeared to be damning testimony. Bankman-Fried, they told jurors, knowingly directed and committed an array of criminal acts that led to the collapse of the FTX crypto exchange and the loss of billions of dollars in customer funds.