By ESPNSTAR.com staff
Dortmund summer signing Marco Reus came back to haunt his former side with two goals and an assist for Ilkay Gundogan, while Neven Subotic and Jakub Blaszczykowski also netted to cap off an excellent day at the office for the defending champions.
And having seen his side let a comfortable lead slip against Eintracht Frankfurt earlier in the week, Klopp was happy to see them put their opponents to the sword on Saturday.
"The lads have done well, in what has been a beautiful evening of football" he said on BVB's official website. "There is nothing about to complain today [Saturday].
"We more than made up for fumbling our two-goal lead [against Frankfurt] tonight [Saturday]. We had a really good second half against a top opponent - we scored some really good goals.
"Today [Saturday] we either were more clinical in finishing off moves, or simply had better luck than we did the last time out. We played really good football and had a lot of fun.
"Everything was perfect today [Saturday]."
Dortmund are next in action on Wednesday when they face a tough test against Barclays Premier League champions Manchester City in their second group game of the UEFA Champions League.