Roy Keane's appearance at Celtic Park has been played down amid speculation over Martin O'Neill's future as manager. The club has not commented on the situation.
O'Neill is reportedly considering his position, but no official decision has been announced. Celtic have not confirmed any managerial changes.
Aberdeen's Findlay Marshall has expressed relief at not being sent out on loan. The player remains part of the first-team squad.
Other names linked with the Celtic job include Shaun Maloney, but no formal approach has been confirmed. The club is expected to provide an update in due course.
