Related Clues:
- Very close NFL games sometimes require them
- Ties require them, briefly
- Bowl bonuses, briefly
- 4th-qtr. followers, sometimes
- Some NBA endings
- 10th-inning counterparts, briefly
- Sudden death periods: Abbr.
- Five-min. periods, maybe
- Its grads are lieuts.
- Oprah's opening?
- Fifth qtrs., so to speak
- N.B.A. tiebreakers
- Some NFL endings
- See 27-Acr.
- Extra periods in sports, briefly