Brian Roberts (concussion) finally conceded Friday that it's unlikely he'll make it back this season. Roberts, who has been out since mid-May, continues to work out and perform baseball-related activities at the team's spring training complex, but he still hasn't played in any games and won't do so until he's symptom-free. With the minor league season ending in a few days, he just doesn't have enough time. "I don't think we've ever sat down and necessarily ruled out anything," Roberts said. "It would probably take, at this point, everything to go really, really, really well for the next couple of weeks." Doctors have told Roberts, who has dealt with a concussion in consecutive seasons, that they don't consider his career to be in jeopardy, but with head injuries, you never know.