In the women's draw, former world no.1 Angelique Kerber, the 15th seed, lost 6-3, 6-1 to the Czech Republic's Katerina Siniakova, who now faces Daria Kasatkina of Russia.
"Players like Riqui have something special, but it is going to be very complicated for him here as there is a lot of competition. I have told him that he has a future here, and we will think about what is the best way to succeed at Barca," he added.
KPMG recently rated Schalke among the 15 most valuable clubs (814 million euros) worldwide.
The 31-year-old had one year left on his previous contract and would have been able to leave for nothing in the summer of June 2021.
This time, German sport is taking a step further, as all sports clubs are allowed to fill their halls or arenas to 20 percent capacity.
Dunajska Streda became the only Slovak football club to continue its journey in any European club competition after defeating the fourth placed team of the last season of the Czech Fortuna Liga FK Jablonec despite trailing twice and forcing the attractive game into overtime.
Stage One involves 32 groups of four players, with the player who tops each group progressing to Stage Two.
"Unfortunately, I won't be able to play the French Open this year. My hamstring is still sore, so I won't have enough time to prepare for the clay," Osaka said on Twitter and Instagram.
In the 70th minute, Al Duhail restored parity again as Al Duhail captain Ali launched a half-volleyed effort that hit the upright on its way in to tie 2-2. Five minutes later, Sharjah were awarded a penalty and Coronado stepped up and converted from the spot.
Li Ang netted a right-sided free-kick on 74 minutes to put the game beyond doubt, with a sweet finish for Suning.
Zhou, 22, drew 2-2 with compatriot Zhao Jianbo and Ricky Walden, but a 3-0 victory over Gerard Greene secured him top spot in the group.