in october 2007 he reportedly attempted to commit suicide by carbon monoxide poisoning, using a yeontan. a friend however, interrupted the alleged attempt. he was hospitalized with fears of possible brain damage, but this proved not to be the case and he eventually made a return to wrestling. speaking to "tokyo sports" yasuda later denied attempting suicide, saying the poisoning was accidental. on january 11, 2011, yasuda announced his retirement from professional wrestling. he wrestled his final match on february 4, 2011, in which he was defeated by genichiro tenryu.