Related Clues:

• Tennis judge's cry
• Gave the O.K.
• Ashe Stadium do-over
• Net judge's call
• Gave one's consent
• Voided shot
• Down or up preceder
• Tennis term
• Ball in the net, sometimes
• "___ freedom ring" (MLK quote)
• Replayed shot
• Tennis replay
• Chartered
• It requires an improved service?
• Give the go-ahead