Impact Mattson spent just over a month with the Triple-A club, and he's allowed five runs (four earned) on six hits and three walks while striking out five in three innings since his demotion. He's made two relief appearances in the majors during low-leverage situations this year, and he'll play a similar role after right-hander Conner Greene was designated for assignment.
AUGUST 7, 2021 • ROTOWIRE
