Spieth likeness unveiled in 24,152-piece mosaic

DALLAS -- Downtown Dallas is the site of an unusual diamond in the rough: 24,152 golf balls on tees, arranged to show the likeness of hometown star golfer Jordan Spieth.

Dallas-based AT&T Inc. showed off the tribute mosaic of the 22-year-old Spieth on Wednesday. The image in a downtown park shows Spieth wearing a cap and appearing to watch his shot off his backswing.

Why all the fuss?

Only a year ago, Spieth's relationship with AT&T was expanded to include its logo on his golf bag. A month later, Spieth went on a tear. He closed out 2014 by winning the Australian Open in Sydney and the Hero World Challenge in Florida by 10 shots. He later said those two events set the tone for a 2015 season…