Portland Sea Dogs infielder Deiner Lopez has been suspended 50 games by Major League Baseball after testing positive for the stimulant aphematimine, the commissioner’s office announced Monday.

Lopez, 23, signed by the Red Sox as a free agent out of Venezuela in 2010, played primarily shortstop and second base in 73 games with the Sea Dogs last season after being called up from Class A Salem in May. He hit .247 with three homers and 17 RBI.

GOLF

LPGA: Sung Hyun Park of South Korea has become the first LPGA Tour rookie to reach No. 1 in the world.

Park replaced So Yeon Ryu atop the women’s world ranking Monday without playing last week. Ryu lost the No. 1 ranking after 19 weeks when she failed to finish in a tie for sixth at the Toto Japan Classic.

Park, 24, won 10 times on the Korean LPGA Tour. Park won the U.S. Women’s Open and already has clinched LPGA rookie of the year. She has a chance to become the first player since Nancy Lopez to win rookie of the year and player of the year in the same season.

Park is playing in China before next week’s season-ending CME Group Tour Championship in Naples, Florida.

BASKETBALL

NBA: Philadelphia 76ers center Joel Embiid will sit out Tuesday’s game at Utah for what the team is calling “load management” as the 76ers try to monitor the minutes of the budding star who played in just 31 games in his first two seasons because of injuries.

The 76ers said Embiid would be available Thursday at Sacramento.

• San Antonio Spurs guard Derrick White has a fractured right wrist and is out indefinitely. White was hurt Saturday during a G League game for the Austin Spurs against the Texas Legends.

COLLEGES

FOOTBALL: Alabama linebackers Shaun Dion Hamilton and Mack Wilson are out for at least the rest of the regular season after sustaining injuries in the top-ranked Crimson Tide’s 24-10 win over LSU on Saturday.

Coach Nick Saban said Monday that Hamilton had surgery on his right knee. He said Wilson is out 4 to 6 weeks with a foot injury and could return for the postseason.

• No. 6 Wisconsin will be without top receiver Quintez Cephus for its game Saturday against No. 25 Iowa.

Cephus suffered a right leg injury in a 45-17 win over the weekend at Indiana. The sophomore is tied with tight end Troy Fumagalli with a team-high 30 catches.

SOCCER

UNITED STATES: Former U.S. national team forward Paul Caligiuri and midfielder Kyle Martino are the latest new candidates for U.S. Soccer Federation president in the wake of the Americans’ failure to qualify for next year’s World Cup.

Caligiuri scored five times in 110 international appearances. After retiring as a player, he has coached Cal Poly-Pomona men’s team (2002-08), its women’s team (2002-2005) and Orange County FC of the National Premier Soccer League (starting in 2017). He also has served on the USSF’s board of directors.

Martino, 36, had one goal in eight international appearances and played for Columbus (2002-06) and the LA Galaxy (2006-07). He is among the studio analysts on NBC’s coverage of England’s Premier League.