Playing on home soil, Musetti will meet Kei Nishikori of Japan in the second round, but the youngest player said he would "enjoy the victory" before that.
The visitors doubled their lead shortly after the start of the second half, when the impressive Gabriel rose highest to head home Willian's corner.
Guoan went ahead before the interval as Cedric Bakambu headed home a cross from Augusto. Substitute Alan Douglas scored in the 88th minute to extended Guoan's lead to 3-1, but Hebei's Zhang Chengdong sparked the game into suspense with a powerful shot in the second minute of stoppage.
The second half witnessed breakthroughs in the final moments. In the 89th minute, Alan Douglas Borges de Carvalho fired a missile for Beijing after finding a gap between two defenders.
The next edition of football's showpiece tournament will run from November 21 to December 18, 2022. Enditem
Stage One involves 32 groups of four players, with the player who tops each group progressing to Stage Two.
The first half started slowly, but things quickly changed when Argentina's Gonzalo Martinez sent an indirect free-kick with surgical accuracy onto the head of Hamdallah, the Moroccan making no mistake from six yards to put his team ahead at the half-hour mark.
Former world number one Victoria Azarenka of Belarus advanced to the quarterfinals as her opponent Darya Kasatkina of Russia retired during the first set with the scores at 6-6.
Meanwhile, the states of Schleswig-Holstein and North-Rhine Westphalia announced that they would consider higher rates of occupancy, up to one third of the arena capacity. Enditem
After selling Ivan Rakitic to Sevilla, Barca are currently looking to sell striker Luis Suarez, with Juventus a possible destination, while Arturo Vidal is close to joining Inter Milan.
LONDON, Sept. 18 (Xinhua) -- Football's global governing body FIFA has predicted a drop of 120 million US dollars in revenue for the period 2019-2022 due to the COVID-19 pandemic, as the FIFA Congress approved a revised budget for the four-year financial cycle on Friday.