The Infinite Arena

From Author Wars - https://authorwars.com/books/the-infinite-arena-36066.html

Overview:

Title: The Infinite Arena
Author: Terry Carr
Year: 1977
Type: Anthologies

Editions/Publications:

Unknown. The Infinite Arena (Unknown, Terry Carr, Thomas Nelson / SFBC, $1.98, 189 pages, Hardcover, Anthology)
Unknown. The Infinite Arena: Seven Science Fiction Stories About Sports (Unknown, Terry Carr, Thomas Nelson, ISBN-10: 084076538X, $6.95, 191 pages, Hardcover, Anthology)