David Robertson will turn 40 on April 9 and he doesn’t have a strong connection to the Cubs, having spent just half a season on the North Side, but there could be mutual interest in a reunion. There are obvious anecdotal ties and Bruce Levine reported Thursday that the sides have discussed a return as the Cubs watch their relief options dwindle. They put in a significant bid on Tanner Scott that fell short, then saw Kirby Yates opt for the Dodgers as well. Paul Sewald, another potential target, joined the Guardians recently.