Tennis Goes High Tech

The U.S. Tennis Association will use Hawk-Eye instant replay technology for the first time at this year's U.S. Open. This is great news given the outrageous number of bad calls at pivotal points in huge matches recently. (Serena Williams, are you reading?)

I haven't heard the details -- will it be viewable to the umpire only; is there a limit to the number of challenges, etc. -- but it will undoubtedly add a new element of excitement to the game.

UPDATE (with all of the particulars):

Hawk-Eye system gets thumbs up for U.S. Open