Warhol's Gretzky portrait up for grabs in auction

A unique piece of sports history is going up for sale at English auction house Sotheby’s: an Andy Warhol original depicting none other than the great one: Wayne Gretzky.

The painting, made in 1983, was part of a series Warhol made of famous athletes.

The last time the painting changed hands, it was sold for $400,000.