Eight NBA teams that are being sued over their use of licensed music in social media posts filed an amicus brief to the U.S. Supreme Court on Monday. They urge the Court to reject the “discovery rule”—which doesn’t start the three-year statute of limitations clock for a copyright holder to sue for infringement until they discover or, with due diligence, should have discovered infringement—and endorse the “injury rule,” which starts the clock when infringement occurred.