Jessica Pegula’s breakthrough continues, reaches first grand slam singles final at US Open and will face Aryna Sabalenka

​ American Jessica Pegula has advanced to her first grand slam singles final, with the world No. 6 rallying from a set and a break down to beat unseeded Czech Karolína Muchová 1-6, 6-4, 6-2 at the US Open on Thursday in New York. Read More Breaking News, Latest News and Videos | CNN