The Tigers scratched Chafin from his scheduled relief appearance in Wednesday's Grapefruit League game against the Blue Jays due to groin tightness, Jason Beck of MLB.com reports.
Detroit is hopeful that after a couple days of rest, Chafin will be ready to take the mound when his next planned pitching appearance comes over the weekend. After inking a two-year, $13 million deal with Detroit earlier this month, Chafin is expected to serve as the team's top lefty setup man behind closer Gregory Soto.