The pair missed the weekend's league draw with Inverness but should be fit as the Hoops prepare to overcome the 2-0 first leg loss which occurred in Kazakhstan on Tuesday.
"Georgios and Kris are looking really optimistic," said Lennon.
"James and Derk are probably 50-50 while Anthony has had a scan and it is a grade one calf strain. He is doubtful and that could be a real blow.
"I wanted to get him on in Kazakhstan but it was a major problem."