The defender will line-up for the Hoops’ Under-17 side tonight as they attempt to make it four cup wins on the spin at Firhill.
Deas has been on the Lennoxtown books since he was 11-years-old and he now has a chance to captain Celtic against their Old Firm rivals.
John McLaughlan’s side ran out 4-0 winners at Ibrox twelve months ago and Deas is determined to make it another night to remember for the green and white proteges.
He said: “You are brought up on success at Celtic and you have to have that mentality from the moment you join the club.
“There is pressure on you but you have to thrive under that. We have that mentality in the squad so we are confident for the final.
“It would mean so much to me to lift the trophy but to do it as captain would make it that bit more special.
“The pressure is on us to win it again but we can deal with that. We have done it before and we are looking forward to it.”
Celtic have enjoyed plenty of success at youth level in recent years as they have added Academy silverware to their first team medals.
And Deas is pleased with the progress that the next generation of Parkhead kids have made as they look to catch the eye of boss Brendan Rodgers.
He said: “It has been a good year, although it has been difficult at the same time.
“Some of the boys have stepped up to the Development Squad and a few have trained with the first team.
“We have boys in international squads as well so everyone is taking their opportunities. It is good to see the boys doing well.
“Celtic have shown that they will give young players a chance so we have to stake our claim and show why we should be in the first team.
“A lot of the boys have been here for a few years and they all know what is expected of them.”