Borussia Dortmund enter their Champions League quarter-final tie with Atletico Madrid in a confident mood after a strong run so far in the elite event. “We are ready to put on our best face – like we have done so often in this Champions League season,” coach Edin Terzic told reporters ahead of the first leg match on Wednesday in Spain. The 1997 winners Dortmund won a tough group ahead of Paris Saint-Germain, AC Milan and Newcastle United before eliminating Dutch league leaders PSV Eindhoven in the round of 16. The good Champions League results are in contrast to an up and down campaign in the …