Some of the sports stories The Associated Press is covering Wednesday. A full Sports Digest will be sent by about 3 p.m. All times EST:

- CORAL GABLES, Fla. - Baseball owners start a two-meeting that is expected to include updates on stadium security, preventing takeout slides at second base and instant replay.

- MELBOURNE, Australia - For the second time in three days, Novak Djokovic wins a match at the Australian Open and is confronted by questions about match-fixing in the sport.

More from FoxSports

- CHARLOTTE, N.C. - The Carolina Panthers may be 16-1, but one concern has been the team's inability to hold on to big leads and close out games going away.

- TEMPE, Ariz. - Michael Floyd didn't pile up the statistics many expected him to achieve this season, but he turned it on the second half of the season and caught two touchdown passes in the Cardinals' victory over Green Bay.

- DENVER - Von Miller and Chris Harris Jr. are the backbone of Denver's dominant defense and this time they have a chance to dethrone the defending champion Patriots.

- SANTA CLARA, Calif. - The San Francisco 49ers introduce new head coach Chip Kelly, who will face one pressing question right away: Will he keep Colin Kaepernick as quarterback? News conference at 2 p.m. EST.

- NEW YORK - The Cleveland Cavaliers look to bounce back after they were blown out by Golden State when they visit the Brooklyn Nets. Game starts at 7:30 p.m. EST.

- CHAPEL HILL, N.C. - No. 2 North Carolina looks to avoid the recent nationwide epidemic of upsets when Wake Forest visits. The preseason No. 1 Tar Heels appear to be in line to return to the top spot with two wins this week. Game starts at 7 p.m. EST.

- ST. PAUL, Minn. - Ashley Wagner and Gracie Gold compete for the women's title, while Max Aaron is the favorite on the men's side with defending champ Jason Brown out as the U.S. Figure Skating Championships open Thursday.

- ABU DHABI, United Arab Emirates - The latest stop for Jordan Spieth on his tour of the golfing world is the Middle East and an eagerly anticipated head to head with Rory McIlroy at the Abu Dhabi HSBC Championship this week.