Briefly: Gordon Hayward rejoins his college coach with Celtics

Gordon Hayward and Brad Stevens, who were a couple of inches from winning an NCAA championship together at Butler, are reunited. Hayward, the top remaining free agent in this summer's NBA class, announced Tuesday night that he's signing with Boston.

A person with knowledge of the negotiations said Hayward agreed to leave Utah for a four-year contract with a value of about $128 million.

Butler, with Stevens coaching, lost the NCAA title game to Duke on a near miss by Hayward as time expired.

"That unfinished business we had together … all of these years later, we still have it: And that's to win a championship," Hayward wrote.

• Brooklyn reached an agreement with Washington small forward Otto Porter Jr. on a maximum four-year contract worth $106.5 million.

• Sacramento struck free-agent deals with Memphis forward Zach Randolph and Utah point guard George Hill.

Mark Cavendish, winner of 30 Tour de France stages, exited the race after suffering injuries in a serious crash caused by world champion Peter Sagan, who was disqualified.

France's Arnaud Demare won the stage, and Geraint Thomas retained the overall lead.

Wild restricted free agent Nino Niederreiter has filed for arbitration, two sources said.

Contract negotiations have begun between the Wild and Niederreiter. Filing for arbitration at least assures no holdout. Niederreiter's last contract — three years, $8 million — wasn't signed until shortly before the 2014 training camp.

Niederreiter, 24, scored a career-high 25 goals and 57 points last season.

MICHAEL RUSSO

Novak Djokovic and Roger Federer, who have won a combined 10 titles at the All England Club, advanced easily in the first round at Wimbledon, each because his opponent was injured.

Djokovic was leading 6-3, 2-0 when Martin Klizan stopped. Federer was leading 6-3, 3-0 when Alexandr Dolgopolov retired.

Horse racing: Hot Shot Kid won the $50,000 Victor S. Myers Stakes at Canterbury Park, the gelding's fourth win in a row.

Baseball: The St. Paul Saints ended a three-game losing streak, beating host Sioux City 12-1 in an American Association game.