Only interesting if you want to see a one sided beating, Cornish had nearly no amateur experience and hasn't even had an opponent to stretch his limited experience. John McDermott would probably stop Cornish inside 8 roundsSexton blew a bum away on Saturday. He would be the most logical substitute for Dillian White, but would he be ready for a 12 rounder.
An interesting substitute could be Cornish. I assume McDermott qualifies for a Celtic title through his heritage.