Em Serena News Today

Finally tonight, serena williams advancing at wimbledon today, and also opening up about a tough loss last year that sparked a lot of controversy. we get more from nbcs blayne alexander. >> reporter: serena williams is headed to the semi-finals after another wimbledon win. >> game, set, match. >> reporter: but its her thoughts on a different match that are getting attention. in a new cover article for harpers bazaar, serena recalls last years u.s. open during an em serena was penalized for slamm...