"I can feel I'm improving, both on the psychological side and technical side," said Wang Yizhu. Enditem
Earlier in the day, Czech Karolina Pliskova survived a scare from Egyptian qualifier Mayar Sherif after she came back from one set down to beat her opponent 6-7(9), 6-2, 6-4 to reach the second round.
Fujian had little chance to score in the third set. Yang Yi then concluded the game with a serve.
"I really wanted to give an effort here. It's my Achilles that didn't have enough to properly heal after the [US] Open. I was able to get it somewhat better, but just looking long-term in this tournament, will I be able to get through enough matches? For me, I don't think I could," said the three-time Roland Garros champion.
Baum faces a big challenge at Schalke, who are on a run of 18 winless games since January 2020. The new Bundesliga season began with a heavy 8-0 defeat to Bayern Munich, followed by an uninspiring 3-1 loss to Werder Bremen, leaving Schalke with zero points and in last place in the table.
New arrival Nayef Aguerd's goal after 33 minutes put Rennes in front. Serhou Guirassy scored a brilliant volley set up by winger Romain Del Castillo in the 52nd minute to extend Rennes' lead, before Adrien Hunou added the third in the closing period with a superb lob.
The 12-time champion also improved his record at Roland Garros to 95-2 with this win.
Valencia were held 1-1 at home to recently promoted Huesca in a game the visiting side probably deserved to win, but had to settle for Dimitrio Siovas' header cancelling out Daniel Wass' fortunate opener for the home side.
The hosts did not stop, and created another amazing run, this time 14-0, on the way to a 44-33 lead in the 17th minute and 49-41 at half-time.
The 2016 French Open winner said at a press conference on his arrival in Paris that he would "make sure not to make the mistake twice."
The first defeat after a 32-game undefeated run in the league against Hoffenheim (4-1) has raised concerns that Bayern's strict saving policy might endanger the team's progress.