Since the regular season began, according to Major League Baseball public relations, Posey's No. 28 jersey has been the No. 2 seller among fans. Only the jersey of Yankees shortstop Derek Jeter, who's retiring after this season, has outsold Posey's.
Posey's popularity has picked up since the offseason, when the jersey of the Giants catcher ranked seventh in sales.
Lincecum didn't appear on the offseason list, but he has climbed into 20th in jersey sales since Opening Day. Winning two Cy Young Awards and making four All-Star teams have kept the Giants right-hander on the edge of the public's consciousness.
Chris Haft is a reporter for MLB.com. Read his blog, Haft-Baked Ideas, and follow him on Twitter at @sfgiantsbeat. Teddy Cahill is a reporter for MLB.com. Follow him on Twitter at @tedcahill. This story was not subject to the approval of Major League Baseball or its clubs.