Arsenal had led 2-0 through goals from Bukayo Saka and Nicolas Pepe, but McGoldrick's goal left them clinging on for the final whistle.
Elsewhere, Sassuolo registered another comprehensive victory as it beat Crotone 4-1 with Francesco Caputo's brace.
The Schalke coach's options seem limited due to financial uncertainty and the transfer window closing this Monday at midnight.
Ben Chilwell's Chelsea debut could hardly have gone better as he scored the first goal of the game on 50 minutes before giving an assist for Kurt Zouma to score Chelsea's second of their 4-0 win at home to Crystal Palace 16 minutes later.
The arrival of the national quartet of Li, Yang Liwei, Huang Sijing and Li Yuan meant Inner Mongolia, playing in the WCBA for the second year, emerged as a rising powerhouse.
"We want to play good football, whether it be at sea level, at high altitude, on the road, or at home," Farias said ahead of Bolivia's opening qualifier against Brazil in Sao Paulo on Friday.
Earlier on the Court Philippe-Chatrier, men's singles third seed, Dominic Thiem claimed another straight-set victory over 28th seed Casper Ruud, beating the Norwegian 6-4, 6-3, 6-1 to set up a last-16 clash against the winner between 2015 champion Stan Wawrinka and Hugo Gaston.
Han Peng's direct corner goal in the 47th minute and Temwa Chawinga's goal in the 81st minute helped Wuhan secure a 4-0 victory, despite a missed penalty by Beatriz Zaneratto Joao in the 78th minute.
Chaux, 28, replaces Napoli keeper David Ospina, who was barred from traveling after two players from the Italian club tested positive for coronavirus, the Colombian Football Federation (FCF) said on Monday.
The Argentinian bested Nadal in the Rome Masters quarter-finals last month for his first win against the world number two.
"They played great and showed their value on the court, which led to our victory," Li commented.