Arizona Diamondbacks' Gerardo Parra is unable to make the catch on a foul ball hit by St. Louis Cardinals' Skip Schumaker in the fourth inning of an MLB baseball game on Wednesday, April 13, 2011, in Phoenix. (AP Photo/Ross D. Franklin)

Photo by: Ross D. Franklin

Arizona Diamondbacks' Gerardo Parra is unable to make the catch on a foul ball hit by St. Louis Cardinals' Skip Schumaker in the fourth inning of an MLB baseball game on Wednesday, April 13, 2011, in Phoenix. (AP Photo/Ross D. Franklin)