HARRISBURG, Pa. (AP) — The Pennsylvania Supreme Court has ruled that Pittsburgh’s so-called jock tax discriminates against visiting professional athletes and performers. The city has been charging them a 3% tax for income earned at publicly funded stadiums, while charging resident athletes 1% plus a 2 % school tax. The city says the net effect is the same, but the high court disagreed Thursday. The court notes that state lawmakers authorized the tax in the early 2000s to boost city finances, not to help pay for the stadiums. The city had collected about $2.6 million from the tax so far this year.