Related Clues:

• Contender who puts Jack in his place?
• Louis or Lewis, e.g
• Rocky Balboa was one
• Descendant of the English Bulldog
• Speed-bag user
• Underwear rebellion?
• Mike Tyson or Tyson Fury
• Dog; fighter
• Ali or Frazier
• Rebellion during the last years of the Qing dynasty
• Rocky or Apollo, in "Rocky"
• One who works in a ring
• One with red gloves, maybe
• One wearing gloves to work
• Dog beginning to bark at high fence