In a battle of former French Open champions, Romania's Halep beat Garbine Muguruza of Spain 6-3, 4-6, 6-4 to reach the women's final.
The third goal took the wind out of Mainz' sails as Zentner had his hands full of work. Dani Olmo should have made it 4-1 but Zentner denied him at the hour mark.
In the other match of Group C, Almoez Ali scored his third goal of the league to help Al Duhail SC beat Persepolis FC 1-0 and overtake the latter to lead the group.
Midfielder Adil Aouchiche opened the score for the Greens only two minutes into the game after slotting home Yvan Neyou's cross. Left back Yvann Macon extended the lead in the 66th minute but the hosts responded quickly as Moses Simon pulled one back only five minutes later, before Renaud Emond levelled the score for Nice five minutes before the final whistle.
Flick claims he can't secure a successful season with Leroy Sane (Citizens) and Tanguy Nianzou (Paris) as the club is facing the German Supercup final against Dortmund, a possible FIFA club World-Championship in addition to its national campaigns.
POAK finished second in Greece last season and a week ago defeated Portuguese giants Benfica 2-0 to book a place in the qualifying round ahead of the group stage of the Champions League.
Li then overwhelmed Jiangsu with four kills. Wang Yuanyuan made the set points for Tianjin to level it at 1-1.
Bakambu (C) of Beijing Sinobo Guoan vies for the ball during the 13th round match between Shanghai SIPG and Beijing Sinobo Guoan at the postponed 2020 season Chinese Football Association Super League (CSL) Suzhou Division in Suzhou, east China's Jiangsu Province, Sept. 25, 2020. (Xinhua/Ji Chunpeng)
Meanwhile all eyes will focus on whether new signing Edouard Mendy goes straight into the Chelsea side or if Frank Lampard keeps faith with Kepa Arrizabalaga after another bad error last weekend.
Former Changchun Yatai forward Marinho continued his impressive form with an early strike before Juan Diego Rojas equalized in the 74th minute.
After Tianjin led 2-1 from the third set, both sides fought to tie at 26-26 which Jiangsu saved one match point to level at 2-2, before taking the decisive fifth set.