Garbine Muguruza, seeded ninth, eased into the final eight. The Spaniard beat Johanna Konta of Great Britain 6-4, 6-1. Enditem
Elsewhere, Eintracht Frankfurt shared the spoils with newly-promoted Arminia Bielefeld following a 1-1 draw. Augsburg downed Union Berlin 3-1 with two late goals, while Freiburg secured a 3-2 victory over newly-promoted Stuttgart. Enditem
The 29-year-old midfielder joined the Reds with a reported fee of 20 million pounds (about 25.8 million US dollars) for four years to become the club's second signing of the summer transfer window, following Kostas Tsimikas in August.
In Group D, Al-Nassr FC of Saudi Arabia continued their charge towards the round of 16 with a 2-0 win over Iran's Sepahan thanks to a brace from Abderazzaq Hamdallah.
Liverpool manager Jurgen Klopp said he believed Jota's arrival would give his team different options.
"We are excited to have agreed this partnership with Tencent, ensuring our supporters in China can enjoy following Premier League action throughout this season," said Premier League Chief Executive Richard Masters.
Xiao, world number 31, turned pro in 2007 after winning the Asian U21 Championship. His best ranking performances were runner-up finishes at the 2013 Shanghai Masters and the 2017 Shoot Out.
But the partnership broke down as they failed to reach an agreement on controversies said to be mainly caused by the COVID-19 pandemic, PP Sports said.
Cologne came out highly motivated after half-time and dominated proceedings, but still the "Billy Goats" squandered a number of chances.
Gong Kewei of Hubei competes during the javelin throw of Decathlon on Day 2 of the 2020 Chinese National Athletics Championships in Shaoxing, east China's Zhejiang Province, Sept. 16, 2020. (Xinhua/Jia Yuchen)
It is the first Tour win for the UAE Team Emirates, in either their current guise or as former outfit Lampre, which ends a run of five straight titles for British team Ineos, former known as Team Sky. Enditem