Weathers (finger) completed a flat-ground throwing session Monday and is hopeful to resume throwing bullpen sessions in two weeks, Christina De Nicola of MLB.com reports.

Weathers was placed on the injured list June 8 with a left index finger strain and has had a slow recovery thus far. Though his workout Monday is a step in the right direction, Weathers isn't on pace to face hitters until late August in a best-case scenario, and he'll require multiple rehab starts after that before a return from the 60-day IL becomes a possibility. The southpaw might not have enough time to get fully stretched out for a starting role during his rehab assignment, so if he comes off the IL in September, he might have to work out of the bullpen.