ATHENS — Olympiakos Piraeus may never have a better chance to overcome its Manchester United hoodoo than in Tuesday's first leg of their last-16 Champions League tie. Yet a rejuvenated United served the runaway Greek league leader a warning of improving form in its 2-0 win at Crystal Palace in the Premier League Saturday. The Greek champion, which has reached this stage of the competition for the first time in four years, will have to make a piece of history if it is to overcome United after losing its four previous meetings. There is scope for optimism, for Michel's team is in imperious form, unbeaten in 26 league matches and holder of a 20-point lead at the top of the Super League. Olympiakos heads into the match on the back of a 4-0 win over OFI Crete Saturday in which recent Serbian signing Marko Scepovic scored the first hat trick of his career. “I would like to see the same concentration, passion and appetite from my players against United as they showed in the game against OFI,” Michel said after the club's 24th victory in 26 league matches. “We face each match with the same seriousness and we believe we can get a great performance and result on Tuesday,” the 50-year-old former Real Madrid and Spain striker said. “We have turned a page and our minds are fully focused on the Champions League match with United, I can see the appetite in the eyes and on the faces of my players; they are so eager for it,” he commented on his Facebook account Sunday. Michel will, however, be without one of his senior players after former Argentina striker Javier Saviola picked up a leg injury and was ruled out. Saviola's absence means 21-year-old Nigerian striker Michael Olaitan, who has scored eight times in 15 appearances this season, is likely to start up front with Argentine attacking midfielder Alejandro Dominguez playing just behind. United travels to Greece with the Champions League its only chance of winning a trophy this season, although that chance is a long shot at best. On the plus side, Wayne Rooney pledged his long term future to United last week before scoring a superb goal in Saturday's victory. Also, manager David Moyes was able to include Marouane Fellaini in the starting lineup against Palace after his long injury absence. The other game of the night sees Borussia Dortmund, last season's runner-up, travel to St Petersburg for a match against Zenit. Dortmund is traveling without several injured stars. Zenit qualified for the knockout phase for only the second time, with six points, a record low tally for a Champions League group stage. Zenit drew all three home matches. — Agencies