Dedryck Boyata, Craig Gordon, Eboue Kouassi and Daniel Arzani are definitely out while Leigh Griffiths is working his way back from mental health issues.
And Lennon just wants his players to focus on the job in hand come 2pm today.
He said: "I'm here for the players and it's important that I try to get them over the line. All I can do is focus on the game on Sunday.
"The players know they're a game away from another final. They've handled these situations brilliantly in the past few years.
Oliver Burke is a doubt for Celtic's clash with Aberdeen (Image: GETTY)
Celtic won the Scottish Cup in 2018 (Image: GETTY)
“I don’t think they’ll need too much firing up. I think the result last week against Livingston [0-0] and the criticism, rightly or wrongly, means there will be no complacency going into this game.
“And to be fair, they’ve handled the cup competitions perfectly over the last two-and-a-half years.
“Having some big-game players in the team already is huge. It’s not as if they’re going into it for the first time – not that I am either.”
Celtic have won the Scottish Cup 38 times, while Aberdeen last lifted the trophy back in 1990.
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