Related Clues:

• Go together like green and purple?
• Practice one's punches
• Box for fun
• Discuss in court
• Mismatch
• Box gently
• Practice for the main event
• Engage in a dispute
• Be contentious
• Debate the pros and cons
• Train in a ring
• Get contentious
• Practice mixed martial arts
• Box with a partner
• Prepare for a 32 Down