Ailing Djokovic out at U.S. Open

Novak Djokovic’s left shoulder was aching, his chances were fading in the fourth round against Stan Wawrinka and, soon enough, the U.S. Open’s defending champion and No. 1 seed was out of the tournament, leaving to a chorus of boos.

Djokovic shook his head as he walked over to the chair umpire to say he was retiring from the match because of that shoulder while trailing 6-4, 7-5, 2-1 and being thoroughly outplayed Sept. 1.

“The pain was constant for weeks now,” Djokovic said.

Perhaps confused by the sudden turn of events, and likely disappointed in the brevity of the show they got to watch for their expensive tickets, some spectators jeered as Djokovic walked off the court in Arthur Ashe Stadium to head toward the locker room, his two equipment bags over his other shoulder.

College football

OKLAHOMA, HURTS ROLL » New Oklahoma quarterback Jalen Hurts passed for three touchdowns and ran for three more, and the fourthranked Sooners rolled past Houston, 49-31.

It was Hurts’ first game for Oklahoma since he transferred from Alabama. He put on a show as his predecessor, 2018 Heisman Trophy winner Kyler Murray, watched. He posted 508 total yards, the fifth-most in school history.

Hurts had a nearly flawless first half He completed 13 of 15 passes for 174 yards and rushed 11 times for 128 yards.

NFL

RAIDERS CLAIM KIZER » The Oakland Raiders have claimed quarterback DeShone Kizer off waivers from the Green Bay Packers.

The move made Sept. 1 gives Oakland four quarterbacks for the time being with Kizer joining starter Derek Carr and backups Mike Glennon and Nathan Peterman.

Kizer was originally a second-round pick by Cleveland in 2017 and then was traded to Green Bay in 2018.

GORDON TALKS AT STANDSTILL » The Chargers do not intend to extend running back Melvin Gordon’s contract until after the season.

General manager Tom Telesco said during a conference call Sept. 1 that the team has suspended contract talks with the regular season one week away. Gordon is on the team’s did not report list after holding out during training camp and the preseason.

Auto racing

POWER WINS AT PORTLAND » Will Power has won at Portland International Raceway in a strong day for Team Penske, as Josef Newgarden slightly tightened his grip on the IndyCar championship.

Newgarden started the Sept. 1 race with a 38-point lead in the standings and had a trouble-free drive around the road course to finish fifth.

Although it was two spots behind challenger Alexander Rossi, who finished third, Newgarden goes to the season finale at Laguna Seca with a 41-point lead over Rossi.