Mary Cunningham is a reporter for CBS MoneyWatch. Before joining the business and finance vertical, she worked at "60 Minutes," CBSNews.com and CBS News 24/7 as part of the CBS News Associate Program.

NEW YORK - Jelena Ostapenko took to the internet immediately after her second-round loss to Taylor Townsend at the US Open (7-5, 6-1), in which Ostapenko accused Townsend of having "no class, no ...