Muhammad Ali's "Thrilla In Manila" Shorts Up For Auction

Bids -- including the latest for $3.8 million -- have been rolling in since late March for the Everlast-brand shorts, which are white with black stripes and are signed by Ali.

The shorts worn by Muhammad Ali in his legendary "Thrilla in Manila" boxing match are up for grabs at Sotheby's in New York, part of a growing sports memorabilia market eyed by auction houses.

Bids -- including the latest for $3.8 million -- have been rolling in since late March for the Everlast-brand shorts, which are white with black stripes and are signed by Ali. 

The auction is open until April 12.