Lyratzis was injured and required surgery, he was meant to be out for 6-8 weeks so from memory that will be mid to late March. He hasn't started training properly yet and is still on a modified running program (or some sort of individual training program)
Michalidis played a bunch of games with the B team so theoretically he should be match-fit or at least making the squads. It seems Lucescu doesn't see him as part of his plans for this season. With Nasberg being the back-up to Koulierakis.