The 26-year-old former world number one looked in good touch as she recorded three wins at the China Open in Beijing last week. But in her last-16 match, against eventual champion Coco Gauff, Osaka retired at the end of the second set because of a back injury.
The Manchester City star Grealish revealed how he motivated Arnold to score from that set piece against Finland
Hammered by Barcelona in a league Clasico and then outplayed by AC Milan in the Champions League, Carlo Ancelotti's side badly needed this confidence-boosting victory.
Nitesh Kumar and Sumit Antil won Gold as Yogesh Kathuniya, Thulasimathi Murugesan and Suhas Yathiraj got Silver, with Manisha Ramadass, Nithya Sre Sumathy Sivan, Sheetal Devi and Rakesh Kumar bagging
McLaren team boss Andrea Stella suggested that the team would bias their support to Lando and made clear they were abandoning a policy of non-interference as the Brit goes chasing