Serie A teams are expected to consider the competing bids and to make a decision by the end of the month.
Jordi Cruyff's debut as Shenzhen Kaisa was bitter but the Dutch said he was satisfied with his players.
"I knew to keep calm and wait for the right gap to open - and it did, quite late."
Luneng were dealt a blow in the 20th minute as Marouane Fellaini picked up an injury, making way for Roger Guedes.
SIPG enlarged the gap just one minute after the beginning of the second half. Defender Wang Shenchao's precise cross found Hulk inside the box, who converted a header to make it 2-0.
However, any concerns over a processional race were dispelled in a surreal opening few laps.
As a result, several drivers towards the rear of the field misjudged the return to racing speed and ploughed into slower cars in the midfield, instantly wiping five drivers out of the race and causing stewards to issue a halt to proceedings to allow marshals to clear the debris.
Flick claims only to have 16 quality players, including the trouble-causing cases.
The hosts remained unimpressed and flabbergasted Hoffenheim with the equalizer at the hour mark when Kevin Freiberger controlled a pinpoint cross from Paul Milde to beat Baumann with a turn and shoot from 10 meters.
The Natatorium is one of the 12 newly-built competition venues. 42 of the 53 venues are scheduled to be completed by the end of 2020.
Among changes are the AFC Champions League East Zone matches, which had been planned to restart in Mid-October, are now scheduled to be played between November 15 and December 13, AFC said after its Executive Committee meeting.