A lead field reporter for Major League Baseball on Fox since 2005, as well as an insider on MLB Network since 2009, Rosenthal began his career at The York Daily Record and The Courier-Post in New Jersey (where he worked for 2 years) after doing internships as a sports reporter for Newsday on Long Island. He then got a full time job at The Baltimore Sun, and while working there he was given the Maryland Sportscaster of the Year Award five times by the National Sportscasters and Sportswriters Association.