N.C. challenging NCAA’s jurisdictionRALEIGH, N.C. — North Carolina is challenging the NCAA’s jurisdiction to pursue charges in the school’s long-running academic fraud scandal and is holding off on self-imposed penalties.The school publicly released its response to five potentially top-level NCAA charges, which include lack of institutional control. UNC acknowledged problems tied to irregular courses in a department popular with athletes but also available to non-athletes on the Chapel Hill campus, though it argued that its accreditation agency — not the NCAA — was the proper authority to handle such a matter.That agency, the Southern Association of Colleges and Schools Commission on Colleges, sanctioned the school with a year of probation that expired in June.

Wawrinka pulls out of Olympic tennisRIO DE JANEIRO — Two-time major champion Stan Wawrinka pulled out of the Olympics because of injury, leaving the Rio Games without half of the men ranked in the ATP’s top 10.A statement issued by Wawrinka’s management company said he “felt increasing pain” during the Rogers Cup in Toronto last week and was told by his doctor after an MRI exam to “reduce his physical activity for an undetermined period.”The statement does not say where Wawrinka is injured. He lost in the semifinals in Toronto.

Dodgers send Puig to minor leaguesDENVER — Yasiel Puig’s up-and-down career took another turn when the Los Angeles Dodgers sent the outfielder to the minors a day after they couldn’t move him before the non-waiver trade deadline.The Dodgers also optioned pitcher Ross Stripling to Triple-A Oklahoma City to make room for their new additions, outfielder Josh Reddick and reliever Jesse Chavez.Los Angeles told Puig not to come to Dodger Stadium on Monday ahead of the team’s trip to Colorado for a series against the Rockies. Puig complied, and now he has 72 hours to report to the minors.

Buffalo woman sues Sabres’ KaneBUFFALO, N.Y. — A 21-year-old Buffalo woman has sued Sabres forward Evander Kane, saying he seriously injured her in the hotel room where he lives.Documents filed July 1 in Erie County State Supreme Court on behalf of Rachel Kuechle say Kane met her in a bar, invited her to what he said was a party and then attacked her, causing cuts and bleeding that required multiple surgeries.