Nike claims the ninja style headbands "unprofessional" for NBA basketball, yet Rafael Nadal is rocking one in the US Open Men's final... with a Nike logo on it. : r/nba
The Best Tennis Headbands of All Time: Rafael Nadal, Roger Federer, Serena Williams, and More — Vogue | Vogue
The Best-Looking Headbands on the Men's Tour - TENNIS EXPRESS BLOG
Nike Head Tie Swoosh Dri-fit Tennis Running Headband Bandana Black for sale online | eBay
Nike Logo Tennis Headband Bandana Dri-Fit Tie Up Swoosh ATP OPEN Nadal Del Potro | eBay