With lots of injuries leaving players as question marks for the postseason, Dave Roberts provides some insight about October. As September comes to a close, questions as to who will be a part of the postseason roster and who won’t make it back from the IL have continued to leave fans worried. Dodgers’ beat reporter, Jack Harris, shares a few of Dave Roberts’ thoughts before Sunday’s game against the Cardinals: Despite a rough past few months of the injury bug including Walker Buehler needing season-ending surgery, Dustin May’s recent back flareup, and lots of unknowns about relievers such as Yency…