The 31-year-old's poor relationship with Real Madrid coach Zinedine Zidane is well documented and was made clear when Zidane only used him in two of the 12 games his side played when Spanish football resumed in June after lockdown.
"It's top players, so if you wait for the mistake it's never going to happen," Garcia said. "If you let Pliskova breeze and take your serve, you're never going to make a return, and then it's 6-4, 6-4 and you're done in one hour."
PP Sports released a statement on Thursday night, claiming the termination was just a "strategic adjustment".
The hosts added their third goal when Daniel Sampaio latched onto Marco Antonio's pass to slot home in stoppage time.
Fourth seed Naomi Osaka of Japan booked her place in the third round with a comfortable 6-1, 6-2 win over Italy's Camila Giorgi.
The victory sends Garcia into the third round, equaling her best US Open result after finishing at that stage every year from 2016 to 2018.
The total number of coronavirus cases in the United States has surpassed 6 million, with national death toll topping 185,000, according to data compiled by Johns Hopkins University.
With the win, Suning leapfrogged Luneng into second place on the table with 17 points from nine games, two points adrift of Fabio Cannavaro's Guangzhou Evergrande who have played one match less.
Valter, 22, broke free during the final few kilometers and the peloton was unable to catch him.
In the 65th minute, Dalian's Ke Zhao added a goal of his own and sealed the 4-0 victory.
World number one Djokovic struck 51 winners to notch up the win against Edmund, extending his unbeaten run this year to 25 matches.