Ever wonder what an umpire's thinking? What IS an umpire's strike zone supposed to be? Here's your chance to find out. Brandon Jackson, a long-time and well-respected collegiate umpire, explains umpiring philosophies and goes through some commonly misunderstood baseball rules that you might need to know someday.

Plus Justin Stone of elitebaseball.tv answers the Question Of The Week about whether the tennis swing will ruin the baseball swing.

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