Related Clues:

• You can be sure of it
• Saves, e.g.
• Sports page factoid
• GNP, for one
• Word heard on ''ER''
• Sports-card datum
• ESPN no.
• Reality
• Welcome center offering
• Baseball-card number
• ''At once!''
• R.B.I. or H.R.
• Rebounds or assists
• Thing for Sgt. Friday
• Fantasy football figure