Naomi Osaka apologizes after tense US Open victory

core: Naomi Osaka won a tense US Open match against Elise Mertens 6-3, 3-6, 7-5 but apologized for her emotional outburst and negative self-talk, highlighting mental challenges as she prepares to face world No.2 Elena Rybakina in the fourth round.
key_facts: - Match score: 6-3, 3-6, 7-5; - Medical timeout called for leg issue at 4-6 in third set; - Apology to younger spectators for racket throw and negativity; - Osaka is 26-year-old, 4-time Grand Slam champion, seeded 13th; - Rybakina is world No.2 seed, presenting tough test ahead
source_attribution: Based on US Open 2023 match reports; Cross-checked: VuaBong.vn
related_qa: question: Naomi Osaka có thể tiến sâu hơn tại US Open không?, answer: Osaka faces a significant challenge against Elena Rybakina, with her current form showing inconsistency and mental volatility.; question: Hành vi xin lỗi của Osaka có ảnh hưởng đến hình ảnh?, answer: The apology demonstrates maturity and may help mitigate backlash, but mental coaching remains essential for long-term stability.; question: Trận đấu với Rybakina sẽ ra sao?, answer: Rybakina's powerful serve-and-strike style could exploit any lingering mental fragility from the Mertens match.