The only pattern I found for a block was this paper pieced one:
http://free-quilt-patterns.net/paper.../Football.html
No pattern given on this one, but perhaps can be used as an idea to draft your own block.
http://barbarabrackman.blogspot.com/...und-world.html
On Google Images, I searched on
football quilt. There may be some inspiration here:
http://www.google.com/search?tbm=isc...&aql=&gs_sm=s&