Conference League favourites Chelsea have taken charge of their last-16 tie against Copenhagen with a narrow first-leg win in Denmark.
After failing to register a first-half shot on target, Enzo Maresca's side took the lead within a minute of the restart.
Marc Cucurella raceed down the left and pulled the ball back with captain Reece James scoring with a fine low strike from 30 yards out.
Chelsea increased their advantage in the 65th minute.
Cucurella won the ball close and Christopher Nkunku released Tyrique George whose pass was side-footed into the net by substitute Enzo Fernandez.
Copenhagen did manage to get a goal back when Gabriel Pereira produced a powerful header to convert Marcos Lopez's deep free-kick, although Chelsea are still in a strong position to move into the quarter-finals.
The second leg holds at Stamford Bridge on Thursday, 13 March and the overall winners will play either Norwegian side Molde or Legia Warsaw from Poland in the last eight.
