"It was a great battle today," Stahl told World Athletics' official website. "This has been a great season even though it was a complicated season - I competed even more this year than last. Next year is an Olympic year and I'm really looking forward to that one."
15th seed Grigor Dimitrov of Bulgaria eased past Italian wildcard Gianluca Mager 7-5, 6-1, while Marin Cilic rallied to beat Kazakhstan's Alexander Bublik 6-7 (4), 6-2, 6-4 to set up a second round meeting with sixth seed David Goffin.
The world's longest leap this year was produced by Chinese long jumper Wang Jianan in 8.36 meters.
Villarreal coach Unai Emery will be looking for more cohesion in attack and his side will be favorites against Eibar, whose first game of the season was a dull 0-0 draw with Celta Vigo.
If 16,520 of the votes are valid, the rules of the club state a referendum over Bartomeu's continuity has to be held within three months in which his opponents would need to win two thirds of the votes of the club's 150,000 members in order to force him out.
"My wish is to improve my personal best, but this will be my first event of the season, so I don't know what awaits me ahead but I'm promising impressive results," said Sawe, who holds Kenya's national record of 2.25m.
Top seed Djokovic labored for two hours to win 6-3, 4-6, 6-3 against German qualifier Dominik Koepfer.
Zaha's solitary goal a week ago gave Palace a 1-0 win at home to Southampton, and he was on target twice more to produce the surprise of the weekend.
Hoffenheim's wastefulness was punished moments later after Jan Thielmann's long ball into the box found new arrival Sebastian Andersson, who headed home the equalizer against the run of play.
Second seed Karolina Pliskova of the Czech Republic also met little trouble in her 6-4, 6-3 win over Russia's Anna Blinkova.
BERLIN, Sept. 15 (Xinhua) -- Robert Lewandowski is convinced that Bayern Munich's players face the most challenging year of their careers going into the 2020/21 season, where they seek to defend last season's treble of Bundesliga, German Cup and Champions League.