LOS ANGELES — The ballpark fell silent as Shohei Ohtani clutched his left arm and writhed in the dirt. He has come to represent so much for the Los Angeles Dodgers: Their finest player, their financial lodestar, the star who forged the team’s path back to the World Series. He catalyzes the present and allows them to fantasize about the future. So Dodger Stadium engaged in a collective gasp when Ohtani jammed his left arm into the ground while attempting to steal second base in the seventh inning of Game 2 against the New York Yankees, with the Dodgers steaming toward an eventual 4-2 victory.