However, under the eccentric tutelage of coach Marcelo Bielsa, Leeds refused to lie down, and equalized in the 12th minute through Jack Harrison after a fine counter-attack.
After the restart, Dortmund started where they left off and controlled proceedings.
Tottenham Hotspur began their season with a defeat, going down 1-0 at home to a James Rodriguez-inspired Everton.
"Thanks to my strategy -- following the leader at first, taking the opportunity when chance appeared. I ran men's 10,000m race on Wednesday, it helped me to heat it up," said 24-year-old Peng.
The fact that the tie was decided with just one leg, rather than the traditional home and away format, meant the game was a potential banana skin for the Chinese-owned team making its first ever appearance in Europe, but Diego Martinez's side got off to a perfect start with two goals in 10 minutes.
The disciplinary commission of French Professional Football (LFP) on Wednesday announced the Brazilian striker would be banned for two games plus one suspended. Argentine midfielder Leandro Paredes received the same punishment while Layvin Kurzawa has to serve a six-match ban for kicking out at Marseille left-back Jordan Amavi.
Meanwhile the press report that Barcelona still have to settle the final details for paying off the contract of former coach Quique Setien and unless they do that before September 27th Koeman will not be able to sit in the dugout of the Camp Nou for Barca's opening La Liga game, which is at home to Villarreal. Enditem
The 30-year-old title favorite Roglic, however, had to finished second, 59 seconds behind, after having worn the yellow jersey for 13 days, while Australia's Richie Porte, 35, took the third place on the podium.
Originating in China, Wushu, a full-contact martial art, is gaining popularity in Lithuania. Enditem
"This year is a special year. Playing with the Beijing Ducks for one year, I will never forget that I see these supporters every day, which makes me so touched. Thank you all. I love you," Lin noted.
Top seeds Novak Djokovic and defending champion Rafael Nadal, who have first round byes, will begin their campaigns on Wednesday.