Veteran full-back Fagner gave the hosts the lead by converting a 12th-minute penalty after he was brought down in the area by Marcelo Benevenuto.
"Piatek traveled to Bosnia against our agreement," said Preetz in an interview for Kicker magazine on Sunday evening.
Luneng, who lost to Dalian Pro 1-0 in the last round, hit the woodwork twice during the game against Suning. Enditem
Elsewhere, fifth seed Alexander Zverev of Germany beat Frenchman Adrian Mannarino 6-7 (4), 6-4, 6-2, 6-2 to advance, while fourth seed Stefanos Tsitsipas of Greece was upset by Croatia's Borna Coric in a five-set thriller.
"It's a very difficult competition as you can see. We followed the coach's guidance to keep the clean sheet. The draw is acceptable for us," said Shenhua midfielder Zhu Baojie.
"I've been playing well the past couple of weeks, training well, focussing on the right things, maintaining that level of performance and hoping for the best. I'm feeling confident about my game and taking that to every match I play."
Old dogs such as Toni Kroos (30/Real Madrid) and Manuel Neuer (34/Bayern Munich) might be an exception as they are pillar upon which he can build on.
"I will work closely with my coach under an adjusted plan, trying to make progress through every competition," Wang said of his future plans. "And save my best for Tokyo." Enditem
Williams said: "I tried to stay calm and be more serene after the loss of the first set. I knew it was important for me just to keep trying, just to keep going."
WASHINGTON, Sept. 7 (Xinhua) -- American veteran Serena Williams and Dominic Thiem of Austria both advanced at the US Open but followed different paths en route to the next round on Monday.
"It was a good challenge but also very important for any athlete to be exposed to bigger competitions," Borhani said. Enditem