Borussia Dortmund manager Thomas Tuchel has admitted that his side were found wanting during their 3-1 defeat to AS Monaco in the Champions League.

The German conceded that his players lacked "quality" in the second leg of the quarter-final fixture, but he also claimed they were unfortunate in some respects.

"Unfortunately we didn't have the quality, energy or the luck to get into the semi-finals," he told reporters.

Dortmund, who bowed out of the competition 6-3 on aggregate, were subjected to a traumatic attack ahead of the fixture's home leg when an explosion rocked their team bus, shattering its windows and injuring one player.

The match was postponed until the following evening, with the Germans going down 3-2, a deficit that only increased during the second leg in the South of France.