MLB umpire camp

A baseball umpire trainee runs toward first base to get into position to make a call during an instructional camp session at Compton Community College. The umpire camp is operated by Major League Baseball and includes on-field and classroom instruction.   (Luis Sinco / Los Angeles Times)

Baseball umpire trainee Darrell Roberts practices his style of calling a third strike during an instructional session at an umpire training camp at Compton Community College. The camp is operated by Major League Baseball and serves as a way to find and groom future major league officials.   (Luis Sinco / Los Angeles Times)

A baseball umpire trainee casts a shadow across a batting cage plate during an instructional session at Compton Community College.   (Luis Sinco / Los Angeles Times)

Baseball umpires in training report for an instructional camp at Compton Community College. The camp is operated by Major League Baseball and includes on-field training of game situations as well classroom instruction on topics such as health and fitness.   (Luis Sinco / Los Angeles Times)

Baseball umpires in training report for an instructional camp at Compton Community College. The camp is operated by Major League Baseball and pulls participants from around the world.   (Luis Sinco / Los Angeles Times)