GOLF

LAKE FOREST, Ill. (AP) Jason Day's easy win at the BMW Championship confirmed what his rivals have known for several weeks now: The Aussie is the best golfer on the planet.

Day's mostly stress-free final round of 2-under 69 at Conway Farms gave him his fifth PGA Tour victory of the season, his second in the FedEx Cup playoffs and vaulted him past Jordan Spieth and Rory McIlroy into the No. 1 spot in the world ranking.

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The Australian zoomed out to a big lead by shooting 61 and 63 in the first two rounds and was never seriously challenged after that. His 22-under total tied for the second-lowest on tour this year and was good for a six-shot victory over rookie Daniel Berger. Scott Piercy finished third, seven strokes back.

The win also made Day the front-runner in the 30-man field heading into the series finale at East Lake in Atlanta.

ST. LEON-ROT, Germany (AP) - Infuriated by Suzann Pettersen's call they found unsportsmanlike, the United States beat Europe on Sunday with the biggest comeback in Solheim Cup history.

Paula Creamer beat Germany's Sandra Gal 4 and 3 to complete the 14 1/2-13 1/2 victory.

The event turned after American rookie Alison Lee was penalized for picking up her ball when she thought her short second putt had been conceded on the 17th hole in the completion of a fourballs match suspended Saturday because of darkness.

Norway's Pettersen, playing alongside England's Charley Hull against Lee and Brittany Lincicome, demanded that the referee penalize Lee, a move that left Lee and Hull in tears after Europe's 2-up victory that gave the team a four-point lead entering the 12 singles matches.

Gerina Piller holed a 9-foot par putt to beat Germany's Caroline Masson 1 up. Cristie Kerr had nine birdies in 11 holes in a 3-and-2 victory over England's Charley Hull, and Angela Stanford ended her nine-match losing streak with a 2-and-1 decision over Pettersen. Lee, Michelle Wie, Morgan Pressel and Lizette Salas also won matches for the United States, and Lexi Thompson halved with Spain's Carlota Ciganda.

AUTO RACING

JOLIET, Ill. (AP) - Denny Hamlin vowed to make it to the championship round of NASCAR's playoffs, and nothing so far is getting in his way.

Hamlin stepped up and once again showed his resilience by rallying for a surprise victory in the first race of the 10-race Chase. The win for Joe Gibbs Racing - a heavy favorite to win the championship - earned Hamlin an automatic berth into the second round of the playoffs.

It was a decidedly different mood for reigning champion Kevin Harvick, who vowed four days ago not to be intimidated by JGR's recent muscle and said ''we're going to pound them into the ground'' during the Chase. Instead, contact with Jimmie Johnson on a restart caused a tire rub on Harvick's car. He thought the issue had fixed itself, but his left rear tire blew two laps later and he was in the wall.

NFL

NEW YORK (AP) - Dallas Cowboys quarterback Tony Romo broke his left collarbone in Sunday's 20-10 win over Philadelphia, spoiling his team's 2-0 start.

Romo, who was sacked and slammed onto the turf late in the third quarter, said tests on Monday will likely determine how long he's out.

It's likely the Cowboys will have to play without Romo and wide receiver Dez Bryant for a while. Bryant is expected to be out for at least a month with a broken right foot.

Earlier in the day, Buffalo Bills safety Aaron Williams went through a series of tests on his neck and head area and was released from a hospital. Williams was hurt after diving to make a tackle in a 40-32 loss to New England, landing his helmet on receiver Julian Edelman's back and having his head bounce off the turf. Bills coach Rex Ryan said Williams was taken to the hospital for what he called a ''cervical precaution.''

Chicago Bears quarterback Jay Cutler left a 48-23 loss against Arizona with an injury. Cutler was stiff-armed while trying to make a tackle on an interception return and landed on his right shoulder, though the team said he left the game because of a hamstring injury.

Also, San Francisco running back Carlos Hyde was taken out of a 43-18 loss at Pittsburgh because of a head injury, and 49ers coach Jim Tomsula said the rookie was cleared after an evaluation for a concussion.

COLLEGE FOOTBALL

NEW YORK (AP) - Ohio State is No. 1 and Michigan State is No. 2 in The Associated Press college football poll, giving the Big Ten the top two teams in the rankings for the first time since 2006.

The Buckeyes received 40 first-place votes after a lackluster victory against Northern Illinois on Saturday. Michigan State has seven first-place votes. The last time the Big Ten held the top two spots in the AP poll was November 2006 when Ohio State and Michigan went into their annual rivalry game Nos. 1 and 2, respectively.

No. 3 Mississippi made a big jump from 15 after winning at Alabama. The Tide dropped from No. 2 to No. 12. The Rebels received 11 first-place votes.

TCU is tied for third with Ole Miss and Baylor is No. 5. Notre Dame is sixth, followed by LSU, Georgia, UCLA and Florida State. The Tigers receive one first-place vote.

CYCLING

RICHMOND, Va. (AP) - Taylor Phinney roared to the front for BMC Racing as the team headed toward the finish line, thousands of fans lining both sides of the downtown boulevard created a tunnel of noise.

All that cheering for an American rider leading a U.S.-based team to time trial victory in the first road cycling world championships to be held on U.S. soil in nearly three decades.

The reigning team time trial champions, BMC Racing covered the undulating, 24-mile course in 42 minutes, 7 seconds, beating Belgian rival Etixx-QuickStep by 12 seconds Sunday.

Spanish team Movistar finished in 42:38 to capture the bronze medal.

In the women's race, Velocio-SRAM won its fourth consecutive championship earlier in the day by rallying over the final miles to upstage Dutch rival Boels-Dolmans and its American rider, Evelyn Stevens, by just 6 seconds. The Rabo-Liv team finished in third.

HOCKEY

EDMONTON, Alberta (AP) - The Edmonton Oilers signed defenseman Oscar Klefbom to a seven-year contract extension.

Klefbom had 20 points, including two goals, in 60 games last season with Edmonton. He ranked second among Oilers defensemen in points (20) and time on ice (21:59), setting career highs in both categories. He also ranked third among Oilers defensemen in blocked shots (102).

The 22-year-old also spent part of the 2014-15 season with the American Hockey League's Oklahoma City Barons, posting eight points in nine games.

Klefbom has spent his career with the Oilers since being selected by Edmonton in the first round (19th overall) in the 2011 draft. He has 23 points (three goals) in 77 NHL games.