Reuters Sports News Summary

Following is a summary of current sports news briefs. Abdul-Jabbar auctions four NBA title rings

An auction featuring four of Hall of Fame center Kareem Abdul-Jabbar's NBA championship rings runs through Saturday. The league's all-time leading scorer is auctioning rings he won with the Los Angeles Lakers in 1980, 1985, 1987 and 1988, plus other game-used and autographed memorabilia from his legendary career. NBA: Nowitzki and Doncic have fans cheering Mavs' past and future

Dallas Mavericks' Slovenian sensation Luka Doncic was lighting up the game against the Los Angeles Clippers this week when a high-profile fan summoned him to his courtside seat at the Staples Center. Former five-division boxing world champion Floyd Mayweather, who still commands the spotlight even in retirement, wanted to offer a seal of approval from one showman to another. Reports: Cowboys DE Gregory suspended indefinitely by NFL

Dallas Cowboys defensive end Randy Gregory has been suspended indefinitely for violating the NFL's substance abuse policy and the terms of his conditional reinstatement, the team announced Tuesday. Gregory was suspended and missed the entire 2017 season for a failed drug test and was granted conditional reinstatement last year. Gregory, drafted by the Cowboys in the second round of the 2015 draft, has battled substance abuse dating back to his college years at Nebraska. Report: Phillies, others offering Harper $300 million-plus

The Philadelphia Phillies are reportedly willing to give free agent outfielder Bryce Harper more than $300 million guaranteed -- and they may not be the only ones. MLB Network's Jon Heyman tweeted Tuesday that "others are over $300M, too." Spring training roundup: Cards' Wainwright sharp in camp debut

Right-hander Adam Wainwright pitched two perfect innings in his first start of the spring as the St. Louis Cardinals defeated the host Washington Nationals 6-1 on Tuesday at West Palm Beach, Fla. The 37-year-old Wainwright was limited to just eight starts last season due to elbow troubles. He is trying to regain the form that saw him win 19 or more games four times during 13 big league seasons. Tennis: Nishikori shines on Dubai debut as seeds continue to tumble

Kei Nishikori was made to work hard by ailing Frenchman Benoit Paire before winning 6-4 6-3 to reach the second round of the Dubai Duty Free Tennis Championships on Tuesday. The world number six, making his debut in Dubai, saved seven break points in the first set before taking full advantage of Paire's troublesome right knee and prevailing in 81 minutes. NBA strikes deal for first Australia sports wagering partnership

The National Basketball Association on Tuesday announced its first ever sports betting partnership in Australia through an exclusive arrangement with BetEasy, an entity owned by Stars Group Inc. The deal gives BetEasy the right to use NBA official data, as well as its assets in betting marketing materials, while the NBA will promote BetEasy directly to its Australian basketball fans. Reports: Rockies finalizing eight-year, $260 million contract with Arenado

The Colorado Rockies are finalizing an eight-year, $260 million contract with All-Star third baseman Nolan Arenado, according to multiple reports. If consummated, the $32.5 million average annual salary would be the highest ever for a position player. The deal would kick in this season, overriding the one-year, $26 million contract the club and Arenado agreed to in January to avoid arbitration, which was the highest one-year salary for an arbitration-eligible player. Ex-NBA player Bibby out as HS coach amid sexual abuse probe

Former NBA player Mike Bibby has been removed as the basketball coach of his high school alma mater pending an investigation into sexual assault claims made against him by a teacher at the Phoenix school. Bibby, who played 14 seasons in the NBA, has been removed as coach of the Shadow Mountain High School boys basketball team after a teacher at the school filed a restraining order against him, the Paradise Valley School District told the Arizona Republic. Patriots owner Kraft formally charged in Florida prostitution sting

Florida prosecutors on Monday filed formal charges against Robert Kraft, the billionaire owner of the New England Patriots football team, and about two dozen other men for soliciting prostitution at massage parlors, authorities said on Monday. The investigation by law enforcement officers in three Florida counties into the trafficking of young women to work at day spas and massage parlors has led to hundreds being charged.