Mendilibar lost several key players, such as Fabio Orellana, Charles and Escalante over the summer, while Ivan Ramis retired, and so far adequate replacements haven't arrived leaving the squad weaker than the one which struggled last season.
The Pole had a perfect season to score 55 goals in 47 matches, leading the Bavarians to win the treble of German Bundesliga, German Cup and UEFA Champions League. He was also top scorer in both the Bundesliga and the Champions League.
"We are a team under construction and we didn't have time to try more solutions in the pre-season, so let's try to find them in these first few games," he added.
Tianjin once had a good chance to break the deadlock in the 56th minute when midfielder Che Shiwei was fouled by defender Cong Zhen in the penalty area. After a VAR check, the referee awarded Tianjin a penalty kick, but Ghana's striker Frank Acheampong failed to convert it to a goal.
The first game of the day saw Alaves draw 0-0 at home to Getafe in a game that was more entertaining than the scoreline indicates. Both sides had chances to win, but the draw leaves Alaves with just one point from their first three games of the season.
The 24-year-old Sherif, who ranks 172 in the world, was the first Egyptian woman to appear in a Grand Slam main draw, while Pliskova, 27, is bidding for her first major title in her 33rd Grand Slam appearance.
Playing in place of the injured striker Kim Shin-Wook, substitute Bi Jinhao seized the opportunity with a close-range shot in the 25th minute and added a second goal on 41 minutes to ensure Shenhua on course grasping the last spot to race for championship.
Elsewhere, last season's fourth-placed side Lazio enjoyed a 2-0 away win over Cagliari with goals from Manuel Lazzari and Ciro Immobile.
Rui Naiwei of China plays chess on line during the 3rd round match at the third edition of Wu Qingyuan Cup Women's Go Tournament in Fuzhou, southeast China's Fujian Province, Sept. 29, 2020. (Xinhua/Lin Shanchuan)
Since 2013 the Swedes have played 30 matches at home, winning 18, drawing six and losing six, with the defeats coming against powerful sides such as Paris Saint Germain, Real Madrid, Atletico Madrid, Chelsea, Juventus and Wolfsburg to show the scale of the task facing Granada. Enditem
Bayern responded well but still lacked in penetration to overcome Hoffenheim's defense. To make things worse, Hoffenheim doubled their advantage eight minutes later as Munas Dabbur capitalized on a misplaced clearance from Benjamin Pavard to beat goalkeeper Manuel Neuer into the far post corner.