Briefly: David Goffin knocks Roger Federer out of ATP Finals

David Goffin rallied from a set down to beat Roger Federer 2-6, 6-3, 6-4 in the semifinals of the ATP Finals in London. Goffin had lost to Federer all six times they had played.

"It is the best win of my career, for sure," Goffin said.

Goffin, ranked eighth in the world, became only the sixth man to defeat Rafael Nadal and Federer in the same tournament. Nadal withdrew after the loss during pool play because of an injured knee.

Federer was on course to win the elite season-ending tournament for the seventh time until he wasted two game points and his serve was broken in the second game of the second set.

"Things really turned around for him at that moment," Federer said.

In the final Sunday, Goffin will face Grigor Dimitrov, who beat Jack Sock 4-6, 6-0, 6-3.

Seattle strong safety Kam Chancellor will miss the Seahawks' game Monday night against Atlanta, and his status for the rest of the season is in doubt because of a neck injury suffered last week.

• Miami waived linebacker Rey Maualuga after he was arrested Saturday night on a battery charge. Maualuga had made 23 tackles in six games. He was arrested after an early morning incident at a downtown Miami nightclub, allegedly involving a dispute over a bar bill.

• Denver waived tight end A.J. Derby, who had made 19 catches this season, replacing him with Austin Traylor from the practice squad. Derby missed practice all week because of a shoulder injury.

A batch of bogeys canceled Sung Hyun Park's two-day victory lap Saturday at the LPGA Tour's CME Group Tour Championship in Naples, Fla.

Park shot a 3-over 75, going from three strokes ahead to one off the lead and from all alone to quite crowded.

Michelle Wie, who lost six weeks playing time this season to an emergency appendectomy, shot a 66 and was in a four-way tie for the lead going into the final round. Kim Kaufman, who is recovering from mononucleosis, shot a 64. Joining them at 10-under 206 were Ariya Jutanugarn (67) and Suzann Pettersen (69). Seven players were tied with Park behind that group, and only four strokes separated the top 31 players.

"I think that over the course of four days, there is always a day where I'm not quite in tip-top shape," Park said. "I think that day might have been today."

Lexi Thompson, who leads the CME Race to the Globe, suddenly has as good a chance as Park to capture the $1 million bonus. Thompson (69 Saturday) also is poised to win the Vare Trophy for the lowest adjusted scoring average.

• PGA Tour rookie Austin Cook shot a 4-under 66 to increase his lead to three strokes in the PGA Tour's RSM Classic in St. Simons Island, Ga. Cook, a shot ahead after a second-round 62, had five birdies and a bogey — his first of the week — to reach 18-under 194.

• Justin Rose shot 7-under 65 and will take a one-shot lead into the final day of the European Tour's season-ending Tour Championship. It would be his third consecutive European Tour title and a second career Race to Dubai crown.

Auto racing: William Byron won the Xfinity Series championship for JR Motorsports, clinching by finishing third at Homestead-Miami Speedway.

Soccer: Roma scored twice in four minutes early in the second half to beat Lazio 2-1 in a high-profile derby between the Italian capital's clubs. … Robert Lewandowski scored twice to help Bayern Munich stretch its lead in the Bundesliga to six points with a 3-0 defeat of Augsburg.

Figure skating: World junior champion Alina Zagitova of Russia made a series of flawless jumps in the free skate to win the women's title at the Internationaux de France in Grenoble. She qualified for the Grand Prix final next month, the last competition before the Winter Olympics in Pyeongchang, South Korea.

Luge: Natalie Geisenberger led a German medal sweep in Igls, Austria, at the first World Cup women's luge race of the Olympic season. Erin Hamlin of the United States was second after the first run but dropped to 21st after a disastrous second run.

Skeleton: Russia's Elena Nikitina won a World Cup race in Park City, Utah, even as her Olympic bronze medal remains under scrutiny in the investigation into state-sponsored doping at the 2014 Sochi Games.

Bobsledding: Germany's Johannes Lochner drove to gold in a World Cup four-man race in Park City, Utah, and Codie Bascue of the United States finished second.