Next » by Ross D. Franklin - AP

San Francisco Giants' Tim LIncecum waits the umpires decision as they watch a replay of a ball hit by Arizona Diamondbacks' Eric Byrnes in the third inning of a baseball game Friday, April 24, 2009, in Phoenix. Byrnes hit a double off the top off the wall and was not awarded a home run on the review of instant replay. (AP Photo/Ross D. Franklin)