US Open: Naomi Osaka urges social media influencers in attendance to respect tennis ‘etiquette’ after second-round win Sky SportsInfluencer boom at US Open tests boundaries of tennis etiquette ReutersUmpire tells US Open influencers to stop photoshoot during Naomi Osaka match The TelegraphInfluencers Are Invading the U.S. Open The CutWhy Brands Are to Blame for Sport’s Influencer Problem SportsVerse | Daniel-Yaw Miller