Ramos chipped the ball into the middle of the Betis goal to give his side their first win of the season and end Betis' winning start to the campaign.
Valencia were held 1-1 at home to newly-promoted Huesca in a game the visiting side probably deserved to win.
POAK finished second in Greece last season and a week ago defeated Portuguese giants Benfica 2-0 to book a place in the qualifying round ahead of the group stage of the Champions League.
In the day's other match, South Korean striker Son Heung Min scored four goals as Tottenham produced a second half blitz to win 5-2 away to Southampton.
After the restart, Desna took control and should have restored parity in the opening stages of the half as Guilavogui blocked Vladislav Kalitvintsev's rebound from inside the box on the goalline.
The decision was announced in a meeting on Tuesday, hosted by the Beijing Organizing Committee for the 2022 Winter Olympic Games president Cai Qi, who emphasized COVID-19 pandemic control and prevention in the next phase of preparation for the Games.
Sun Ke (L) of Shenzhen FC vies with Marek Hamsik of Dalian Pro during the 13th round match between Shenzhen FC and Dalian Pro at the postponed 2020 season Chinese Football Association Super League (CSL) Dalian Division in Dalian, northeast China's Liaoning Province, Sept. 24, 2020. (Xinhua/Pan Yulong)
Barca make their debut at Sunday's big game when they entertain an impressive looking Villarreal, and their strike trio of Paco Alcacer, Gerard Moreno and Take Kubo. All eyes will be on Ronald Koeman's league debut in charge of a side that no longer contains players such as Luis Suarez, Arturo Vidal or Ivan Rakitic.
Maccabi, without nine players who tested positive for the coronavirus, surprised its opponent in the 9th minute, when midfielder Dan Biton scored, after a long pass from forward Eylon Almog.
"We made a lot of preparations before the game, and everyone tried his best to notch the victory, especially against a strong opponent like Guangzhou," said Li after the game. Enditem
"We gave up our own advantage in tactics, only to let Jiangsu play its way comfortably," said Shanghai head coach Wang Zhiteng.