Possible Clues:

• French Open surface
• French Open feature
• Tennis venue that might have suited the young Ali?
• Surface dominated by Rafael Nadal
• Head of church (non-clerical) has date to practise service here?
• The French Open is the only Grand Slam tournament played on this
• Base for play involving lucky actor when Rex dropped out
• Surface suited to a young Ali?
• As held by the young Ali?
• Alternative to lawn for tennis?