The host's efforts paid off with 17 minutes played as Mainz' Leandro Barreiro fouled onrushing Dani Olmo inside the area. Forsberg broke the deadlock with a well-placed shot from the spot into the bottom right corner.
Monday's first game saw Aston Villa beat Sheffield United 1-0 in Villa Park on a 63rd minute goal by Ezri Konsa Ngoyo.
After that, control of the game was taken by the Austrians, and in the 16th minute Maccabi's defender Eitan Tibi saved a sure goal from the line, after a shot by Hungarian midfielder Dominik Szoboszlai.
Shanghai is scheduled to meet Beijing Guoan in the next round on Friday, and will secure the top spot going into the second phase if it could remain undefeated. Shijiazhuang will fight against Chongqing Lifan on the same day.
It will feature two Super 1,000 Asia Open, culminating with the BWF World Tour Finals.
Nobody will doubt Messi's commitment on the pitch, however, and he will again lead the side this Sunday in an attack which will probably also see Antoine Griezmann, who now has more responsibility following Suarez's departure, and Ansu Fati, who was virtually the only good news to come out of last season.
For its part, Femexfut said it hoped to set up a clash against another opponent on September 30.
The match went ahead and West Ham defeated their League One rivals 5-1 with assistant Manager Alan Irvine under charge.
Guangzhou Evergrande already secured the first position in this division by 31 points. However, the second and third position also see fierce competition between Jiangsu and Shandong, who gained the same number of points and are ranked only on goal difference. Enditem
In addition to the infected players, several Flamengo officials and members of the coaching staff - including head coach Domenec Torrent - have tested positive for the virus in the past week.
The 22-year-old Lyu took a 2-0 lead but handed Selby several chances to end the game 2-2. It meant that Lyu finished second with one win and two draws.