Factual error: They are suppose to be in Yankee Stadium investigating the death of the man they found in his truck. But they are not in Yankee Stadium, the color and configuration of the seats are not correct, they are in the L.A. Coliseum.
Character mistake: When Hawkes shows Mac, Danny, and Aiden a bruise on Gilbert Novotny's body, and tells them he was struck with a baseball, Danny refers to Gilbert as "George Novotny", like Stella did earlier in the episode.
Character mistake: In the morgue, Stella initially identifies Gilbert Novotny as "George Novotny", however, correctly identifies him later in the scene. He is referred to as Gilbert through remainder of episode.