Susan Candiotti reported from New York, and Sarah Hoye reported from Philadelphia.

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Woods claimed the vacant IBF crown against Rico Hoye last March and has made two defences, including a sixth-round stoppage of Australia's Jason DeLisle last month.

BBC: SPORT | Boxing | Woods gets third Johnson showdown

CNN's Susan Candiotti and Sarah Hoye contributed to this report.

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CNN's Sarah Hoye and Mike Martinez contributed to this report.

CNN: STORY HIGHLIGHTS

CNN's Sarah Hoye contributed to this report.

CNN: STORY HIGHLIGHTS