![Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her](https://pbs.twimg.com/media/ED5Mq1LWwAEQnD2.jpg)
Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her
![Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her](https://pbs.twimg.com/media/ED5L7KGXoAEgv0O.jpg)
Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her
![Why Does Bianca Andreescu Wear Something Around Her Arm? Is Bianca Andreescu Sponsored By Nike? - ABTC Why Does Bianca Andreescu Wear Something Around Her Arm? Is Bianca Andreescu Sponsored By Nike? - ABTC](https://i0.wp.com/abtc.ng/wp-content/uploads/2022/05/bianca-andreescu-YouTube.jpg?resize=770%2C515&ssl=1)
Why Does Bianca Andreescu Wear Something Around Her Arm? Is Bianca Andreescu Sponsored By Nike? - ABTC
![Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her Darren Rovell on Twitter: "I've seen a lot of claims of performance enhancing substances and superstitious charms. I've never seen a spiral hair tie, which is what Bianca Andreescu wears on her](https://pbs.twimg.com/media/ED5L7K1XsAAMiG6.jpg)