I heard Mike Tyson is seriously ill, he can't walk and is only in a wheelchair, is this true?

Mike is my favorite legend of boxing, I do like boxing because of him. when I was young I do not like boxing because it was boring to watch 12 rounds, but after watching on youtube how he Knocks out in only a second, I'm direct to love him and any kind of boxing. he did wrong by biting Holyfield's ear and everyone has forgiven him. but, there are still many exhibitions offered to him to meet Holyfield again, I heard about $100 million, and I don't know how this continues.