Hyeseong Kim, Alex Freeland or Santiago Espinal. Those three players are at the forefront of conversations for the Los Angeles Dodgers as they figure out the corresponding move for Mookie Betts' return. Betts is set to officially rejoin the team on Monday after missing five weeks with an oblique injury. The Dodgers could use him amid a rough 4-7 stretch. “It’ll be kind of a shot in the arm to have Mookie back,” manager Dave Roberts said after Sunday's loss to the Atlanta Braves. “I know he’s excited. Just to kind of add a star player into your lineup lengthens things out. He comes in fresh, excited to be back. Hopefully, he can infuse some energy into this club.” However, with it comes a very difficult decision. The Dodgers need to make room on the active roster for Betts, and have no clear answer as to who he'll replace. The decision is between three players — Kim, Freeland and Espinal — and while one of them (Espinal) is playing significantly worse than the other two, the choice isn't that simple.…