In the women's draw, top seed Simona Halep of Romania beat Ukraine's Dayana Yastremska 7-5, 6-4.
The following games conclude the first round on Sunday: RB Leipzig face Mainz, while Wolfsburg host Bayer Leverkusen. Enditem
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.
Teda took the lead in the 70th minute when Sandro Lima donated a powerful header on Frank Acheampong's cross. However, six minutes later, Teda's advantage was terminated as their newly transfered midfielder Akhmedov was substituted with injury.
The prolific Norwegian striker had another chance later but defender Nico Elvedi blocked his effort.
The first half of the fixture played in the north of Europe did not bring many scoring chances.
Esteghlal parted company with Farhad Majidi at the end of Iran's super league season and reportedly has not reached an agreement with Italian coach Andrea Stramaccioni.
Internacional lead Group E, three points ahead of second-placed Gremio, who lost 2-0 at Universidad Catolica in Chilean capital Santiago.
"He's an important leader for the team and a big part of what we're building. He wants to be up there with the best players in the world and leave his mark. He can achieve that here," said Arteta.
BRATISLAVA, Sept. 18 (Xinhua) -- Slovan Bratislava's streak of bad luck in the European football competitions continues.
Zaha's solitary goal a week ago gave Palace a 1-0 win at home to Southampton, and he was on target twice more to produce the surprise of the weekend.