CHICAGO — The worst-case scenario, it seems, has indeed been averted. Two days removed from a knee inflammation injury, Shohei Ohtani was back in the Dodgers’ lineup as designated hitter on Saturday. Ohtani had been removed early from Thursday’s game in Pittsburgh with what the team said was left knee inflammation, then also sat out Friday’s series-opener in Chicago against the White Sox. From the start, manager Dave Roberts had insisted Ohtani’s injury was minor. He believed it was unrelated