Selby, 37, began the first stage by beating Fergal O'Brien 3-1 in the four-man group. Then the world number four defeated Brandon Sargeant with the same scoreline before drawing 2-2 with Chinese player Lyu Haotian in the last match.
Villarreal kicked off the season with a win and a draw, but strikers Gerard Moreno and former Barca frontman, Paco Alcacer have already shown they can trouble and defense in La Liga.
Tianjin dominated the match with strong attacks from Chinese national team players Li Yingying and Wang Yuanyuan, while Hebei hardly created a threat in the first set.
The Rossoneri underwent the second round of tests after the positive result of center-back Leo Duarte, and then confirmed Ibrahimovic's diagnoses.
The seven goals conceded in two games strengthened Leeds' need to fortify their defense. Enditem
The meeting also reiterated that all Games venues should be completed by the end of this year, safely and up to high standards.
The victory ended Huanghai's seven-game losing streak across all competitions while Teda remained winless in all 13 league matches this season, which put coach Wang Baoshan under growing pressure to restore the team's form.
"We know that nobody can ignore the importance of Paolo, but we have to try replace him and the national team has responded," Gareca told reporters in a virtual press conference.
Instead of 2,100 fans, only a few hundred might go, while Sevilla is not expecting more than 500 followers.
In Tuesday's match, Guoan was up by three goals before the interval, with goals from Yu Yang, Jonathan Viera and Fernando Lucas Martins.
Djokovic, the world number one and the top seed at the tournament, won 7-5, 6-3 against Argentine Schwartzman to lift his 36th Masters title, one more than Rafael Nadal.