Carlos Alcaraz covered his modesty as he cruised into the fourth round of the US Open.The Spaniard’s baggy sleeveless top has been raising eyebrows this week as it occasionally revealed a nipple during matches.The sight even prompted former player-turned-pundit Genie Bouchard to post on social media: “Love you Carlos but we’ve got to put the nip away.”So Alcaraz fixed his malfunctioning wardrobe by wearing a skin-tight vest underneath as he beat China’s Wu Yibing 6-3 6-4 6-1 in a two hours and 19 minutes.The 23-year-old said: “Well, I think I saw my nipple too much lately. I felt like, you know, I could hide it for at least once match."