Results Wednesday in Round of 16 return legs in the European Champions League. ( dpa )
Porto - Schalke04 (1 : 0) ; after extra-time (1: 1) ; aggregate score (1:4) on penalties
Real Madrid - Roma (1 : 2) ; Roma wins (4 : 2) on aggregate
Chelsea - Olympiakos (3 : 0) ; Chelsea wins (3 : 0) on aggregate