Related Clues:

• Not having lost a match
• Boiled egg always first
• Destined for the playoffs
• Like players who sweep things
• With nil in the loss column
• Original bit of bread brought in left on plate for all-time
• Not defeated by one bishop having been taken
• Rock-bun taken as nourishment - there's nothing better
• Not out, but not taken in without key?
• Not defeated
• Rocky Marciano remained this
• Always top, like the schoolboys of today?
• Never having experienced loss, like a spoilt child?
• Not taken down, leader in battle held — to be so?
• Not overcome