Tim Tebow hasn't thrown his first NFL pass, and already he has the hottest selling jersey.

His No. 15 Broncos' jersey was the hottest selling jersey on the NFL's website in April. The No. 2 seller: Donovan McNabb's Redskins' jersey. Meanwhile, Steelers quarterback Ben Roethlisberger's jersey slipped out of the top 25 for April after ranking 11th in sales for the year ending March 31.