what is the summary of baseball genus?

Jalen DeLuca loves baseball. Unfortunately his dad can't afford to keep him on the travel team. His dad runs a diner and makes enough to cover the bills, but there isn't enough to cover any extras. So Jalen decides to take matters into his own hands, and he sneaks into the home of the New York Yankees' star second baseman, James Yager, and steals a couple of balls from his personal batting cage. He knows that if he can sell them, he'll be able to keep himself on the team.