Payton Tolle is blazing his way through the Boston Red Sox’ minor league ranks, establishing himself as the team’s top pitching prospect. Now, he’s knocking on the door of the major league rotation—a move that chief decision-makers aren’t ruling out.

The Cincinnati Reds have promoted Zach Maxwell, an “intriguing prospect,” just in time for a significant weekend series against the Arizona Diamondbacks. His call-up could shape the team’s approach as they face a key stretch in their schedule.