Celtic know they will face either Keane's Ferencvaros or Stuttgart in the knockout round. For Keane, going up against his former club and former boss O'Neill would be a special occasion. Speaking on TNT Sports, he said: "Well, obviously the connection to Celtic, of course, I played there. Read more:"Ludogorets we've played and we've done well against them. Ferencvaros ended the league phase in 12th position, with Celtic finishing 21st in the table.
