Portland Sea Dogs outfielder Jeremy Barfield was named the Eastern League’s Player of the Week after hitting .444 with six homers and 15 RBI in six games.

Barfield finished July with 12 homers and 33 RBI, setting franchise records for any month. He’s hitting .306 with 18 homers and 48 RBI in 61 games since joining the Sea Dogs in May.

HOCKEY

AHL: Former Boston Bruins and Portland Pirates player Jay Leach is the new head coach of the Providence Bruins.

Leach, 37, is a Providence College graduate who played for the Providence Bruins for three seasons. He served as an assistant coach last season for Kevin Dean, who was promoted to the Boston Bruins’ coaching staff this offseason.

NHL: John Tortorella of the Columbus Blue Jackets is getting a one-year contract extension following a season in which he was the NHL’s Coach of the Year.

Financial terms were not released. Tortorella was entering the final year of a three-year contract.

• Newly acquired Buffalo Sabres defenseman Nathan Beaulieu agreed to a two-year, $4.8 million deal, foregoing the opportunity to have his contract determined at an arbitration hearing.

Buffalo gave up a third-round draft pick to acquire Beaulieu in a trade with Montreal on June 17. Beaulieu, 24, had a career-best four goals and 24 points in 74 games in his third full NHL season.

BASKETBALL

NBA: The Milwaukee Bucks re-signed restricted free-agent guard Tony Snell, bringing back a backcourt starter and one of the team’s best defenders.

Snell set career highs in 2016-17 in points (8.5 ppg) and 3-point shooting (40.6 percent). His 6-foot-7 frame fits in nicely with the Bucks’ length on defense.

• The Atlanta Hawks waived center Diamond Stone only three weeks after he was acquired from the Los Angeles Clippers as part of a three-team trade.

Stone’s 2017-18 contract for $1,312,611 is guaranteed.

TRACK AND FIELD

WORLD CHAMPIONSHIPS: Olympic 800-meter champion and world-record holder David Rudisha of Kenya withdrew from the world championships after straining a thigh muscle in a training session.

Rudisha said an MRI scan on the right-leg injury showed it would not heal in time for the championships, which open Friday in London. The 800 heats, which will include Isaiah Harris of Lewiston, are Saturday.

GOLF

PGA: Rory McIlroy has fired his caddie and will use his best friend at the Bridgestone Invitational and PGA Championship, according to published reports.

Reuters cited a source it did not identify as saying McIlroy has parted ways with J.P. Fitzgerald. They worked together for nine years, during which McIlroy won four major championships and reached No. 1 in the world.

TENNIS

CITI OPEN: Top-ranked American John Isner withdrew from this week’s tournament in Washington because of a knee injury, tournament officials announced.

Isner, ranked No. 18 in the world, won his fourth ATP Atlanta title on Sunday, defeating fellow American Ryan Harrison in the final. A week earlier, he won the Hall of Fame Open in Newport, Rhode Island.