Berlin: Chelsea have reached the semi-finals of the UEFA Champions League. The team advanced despite last-gasp goals from JosÃ© Paolo Guerrero and Mehmet Scholl that earned Bayern MÃ¼nich victory in Germany. Leading 4-2 from the first leg, Frank Lampard's deflected strike put Chelsea in front on the half-hour. Claudio Pizarro levelled midway through the second half, but Didier Drogba effectively sealed the visitors' progress with ten minutes remaining. However, late strikes from Bayern substitutes Guerrero and Scholl gave the German side victory on the night.