The Los Angeles Dodgers officially optioned infielder Alex Freeland to Triple-A Oklahoma City on Monday as the corresponding move for Mookie Betts' activation from the injured list. The Dodgers were deciding between Kim, Freeland and infielder Santiago Espinal (who would have had to be designated for assignment) as the roster casualty for Betts. In the end, LA sent down Freeland, the opposite decision they made seven weeks ago when Kim was optioned to Triple-A and Freeland earned the team's final Opening Day roster spot. Ahead of Monday's series opener against the San Francisco Giants , manager Dave Roberts provided some insight into the decision. “It was hard. It was a tough [conversation],” Roberts said. “I think what it came to do is Hyeseong’s performed better. Alex did everything that we asked as far as playing defense and being a pro, learning and taking good at-bats. And the last 10 days have been really good as far as getting on base.…