In Saturday's other fixtures, Atalanta dominated Torino 4-2, while newly-promoted Benevento stunned Sampdoria 3-2. Enditem
Rangnick has successfully worked in Gelsenkirchen twice in 2004 and 2011, and since then enjoys high respect among the club's supporters.
Real Madrid won 3-2 away to Betis on Saturday after a disastrous few minutes from Betis defender Emerson.
Fernando doubled his tally with an unstoppable volley in the 74th minute. In stoppage time, Ba Dun finished his first goal in CSL this season and made it a 4-0 victory against Shijiazhuang.
Lautaro Martinez came off the bench to add the fifth for Inter with a rocket in the 72nd minute, and Caprari scored a consolation goal for Benevento four minutes later.
The clubs are hoping for similar rules set up for the German national team ahead of internationals in October, including a game in Kiev.
In Wednesday's other quarterfinals, Jiangsu smashed Sichuan 3-0 (25-8, 25-15, 25-20), Tianjin crushed Zhejiang 3-0 (25-15, 25-15, 25-22), and Shandong beat Fujian 3-0 (25-15, 25-20, 25-19). Enditem
The contract of Karimi with Esteghlal has expired and he is a free agent at the moment. Enditem
However, that goal only served to pique Liverpool and Sadio Mane drew them level with a simple volleyed finish after Leno did well to parry a shot from Mohamed Salah on the break.
In a 13th round match between SIPG and Guoan, refereeing decisions caused controversy and conflict between the two sides. In all, six clubs have appealed to the Chinese Football Association regarding refereeing mistakes and omissions, which adds another challenge for the CSL to face.
"The sales of fitness equipment has been increasing. According to the Suning platform, sales of dumbbells, hula hoops and yoga mats increased by more than 300 percent over the same period of 2019," said Liu Fumin, director of the Department of Sports Economics of China General Administration of Sport.