Top seed Stephens upset at Citi Open

Rebecca Peterson of Sweden upset top-seeded Sloane Stephens in straight sets 6-2, 7-5, in the first round of the Citi Open in Washington. The hard-court tournament serves as a tune-up for the U.S. Open. Stephens was coming off a third-round loss at Wimbledon.

A bill introduced Tuesday and spurred by Larry Nassar’s sex crimes and other mishandled abuse cases would allow Congress to fire the U.S. Olympic and Paralympic Committee’s board and would quadruple the money the federation provides to the U.S. Center for SafeSport.

Former Michigan State president Lou Anna Simon, accused of lying about her knowledge of allegations against sports doctor Nassar, is getting about $2.5 million as part of a retirement package and agreed not to sue the school . ... The trial of former Wisconsin football player Quintez Cephus began with a woman testifying that Cephus raped her in his apartment. The 21-year-old is charged with second- and thirddegree sexual assault after two 18-year-olds told police he assaulted them on the same night.

USC picked up a commitment from one of the top defensive linemen in the state, Greenbrae Marin Catholic High defensive tackle Jamar Sekona. The 6-foot-21⁄2, 303-pound Sekona is the No. 2 defensive tackle in the state, according to the 247Sports composite rankings. — Shotgun Spratling

Wisconsin men’s basketball assistant Howard Moore won’t return next season after suffering a medical setback following the May 25 car crash that killed his wife and daughter.

C.J. McCollum agreed to a three-year, $100-million contract extension with the Portland Trail Blazers.

Former Ducks player Chris Kunitz, winner of four Stanley Cups (three with Pittsburgh) in 15 NHL seasons, announced his retirement . ... Minnesota fired general manager Paul Fenton after one rough season, and the end of a six-year playoff streak.

Americans Karissa Cook and Jace Pardon beat Argentines Ana Gallay and Fernanda Pereyra 14-21, 22-20, 15-10 to win the women’s beach volleyball final at the Pan American Games.

Santa Ana’s Courtney Congloue advanced to Round 3 of the U.S. Open of Surfing at Huntington Beach. Australia’s Kalani Ball eliminated men’s World No. 1 Kolohe Andino.