The Dodgers have a new injury concern to monitor with one of their star players. After missing Saturday’s game because of back tightness, catcher Will Smith was once again out of the team’s lineup Sunday — though manager Dave Roberts said he didn’t believe the issue would require an injured list stint. Dodgers starting catcher Will Smith was out of the lineup for a second consecutive day Sunday. Getty Images “It’s one of those where he could play if needed to,” Roberts said. “But we just felt it was smart to give him an extra day. I guess, put him in the day-to-day category.” Roberts added that his hope was for Smith to return to the lineup Monday. Roberts initially disclosed Smith’s back issue Saturday, saying it had flared up near the end of this past week. However, he also said it was “nothing of concern” and expected Smith to be back in action Sunday.…