John Steigerwald is a Pittsburgh Sports writer. I didn't hear about this until listening to a local sports station tonight. You may not be someone who wears a jersey to games but there is absolutely NO WAY this guy should be blamed for getting mugged.
I personally wear a Cubs jersey to all my games at PNC Park and fortunately have only had one incident where things came close to becoming physical. I don't see anything wrong with wearing a jersey or cheering on your team unless you are being very obnoxious or crude.