Ambrose made a good restart to maintain the first position, while Johnson defended second.
Johnson defended the title twice before losing by a wide decision to Roy Jones in a unification bout in 1999.
Johnson is defending Wadley against a charge that has never been made.
His case, however, was weakened when Johnson defended his actions rather than deny the claims made against him by his ballclub.
Earlier this week, Johnson, a 6-10 left-hander, defended his numbers, arguing that, with the exception of two starts, he had pitched well in the postseason.
- Johnson defends the decision to stop foreigners like Bill Bratton from applying for the Met commissioner's job.
Johnson, the first black world heavyweight champion, had held the title nearly six and a half years and had defended it eight times.
Johnson defends the value of modern pop culture.
Johnson defended his coaching colleagues, saying he would not have continued in the role had they been removed by the RFU.
Johnson defended Joseph Smith from criticism on several occasions.