Sarah Kustok, a popular Comcast Sports Net reporter in Chicago, will be joining the YES Network as the Nets sideline reporter next season. Multiple reports say Kustok has been hired to replace Jessica Taff. A star athlete at Chicago's DePaul University, where she graduated with a communication/media studies degree in 2004, Kustok, 30, worked as a sideline reporter for ESPN’s college and high school football broadcasts before joining Comcast SportsNet in 2009. Recently, she has been working as a Friday night sports anchor at the NBC affiliate in Chicago.