**Shocking Upset: Former U.S. Open Champion Sloane Stephens Knocked Out in South Korea First Round!**
**Seoul, South Korea** – Hailey Baptiste secured an impressive victory over 2017 U.S. Open champion Sloane Stephens, winning 7-6 (4), 6-2 in the first round of the WTA’s Korean Open. Baptiste’s performance marks a significant moment for the rising American player, defeating her more experienced compatriot in straight sets. In other notable matches in…