![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/ED5L7K1XsAAMiG6.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
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Emma Raducanu looking for Bianca Andreescu revenge after she 'couldn't move' in retirement | Tennis | Sport | Express.co.uk
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