Inter Milan took another step towards direct qualification for the last 16 of the Champions League with Tuesday's 1-0 win over Leipzig which moved the Italians top of the table. Castello Lukeba's own goal midway through the first half was enough for Inter, who are the only team yet to concede a goal, to win their fourth straight match in Europe's elite club competition. Italian champions Inter lead Barcelona and Liverpool, who host Real Madrid on Wednesday, by a point after a narrow win which should have finished with a more emphatic scoreline for the hosts.