Derek McInnes says it will be a "real anticlimax" if Celtic don't complete the treble at Hampden on Saturday.

Aberdeen stand between Celtic and their third domestic trophy of the season when they face each other in the Scottish Cup final.

While the Dons will be going out to make it a special end to what they call a successful season, McInnes believes it's Celtic who are under pressure to deliver.

"Celtic deserve a lot of credit for going through the campaign undefeated," he said.

"I think it was clear from maybe October that was something people started to talk about. Celtic used that as motivation and that's credit to them.

"I think the level of player they have, and the performances they've produced, anything other than a treble would be extremely disappointing for them.

"While we put ourselves under pressure to deliver for ourselves we've had a very good season and will still have a very good season if we lose tomorrow.

"But we can have a brilliant season, a season to remember, a special season by winning this tomorrow.

"I think it would be a real anticlimax, and not something that's expected, if Celtic weren't to complete the treble."

McInnes was playing for West Brom the last time Celtic secured the treble in 2001 and he added his surprise that it hasn't been achieved since.

"I think more Celtic teams should have won the treble over the last few years," he said. "But this Celtic team have been very sharp, focused and confident with their work.

"They don't give much encouragement to their opponents."