NBA coaches mostly against, uncertain about new challenge rule
NBA Coach's Challenge Rule Explained - New NBA In Game Challenge System for 2019-2020 Season - YouTube
Utah Jazz coach Quin Snyder discusses challenge rule before NBA restart
NHL Public Relations on Twitter: "New this season, all unsuccessful Coach's Challenges will result in a penalty. Teams may initiate a challenge on appropriate plays at any time except the final 1:00
NBA Coach's Challenge Data Yields Surprising Results
NFL challenges: How many are allowed? What are rules for timeouts?
NHL announces rule changes for video review, coach's challenge
NBA coach's challenge: Reviews are positive, but results (50%) mixed
CFL approves rule change on coaches' challenges - CFL.ca
Many Coaches Don't Like The NBA's Challenge Rule; Will It Be Back Next Season?
NBA Board of Governors approves coach's challenge, use of NBA replay center to initiate instant replay | NBA.com
Report: NBA may allow coaches challenge in 2019-2020 season | RSN
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NBA Board of Governors passes “Coach's Challenge” rule for 2019-20 - Pounding The Rock
Of Course, the Rockets' Mike D'Antoni Was the First Coach to Test an NBA Rule Change
Mavs news: Mark Cuban reacts to successful Coach's Challenge by Blazers that led to Dallas loss
NBA Coach's Challenge Data Yields Surprising Results
NHL rule changes: Coach's challenge for video review recommended - Sports Illustrated
Many Coaches Don't Like The NBA's Challenge Rule; Will It Be Back Next Season?
2020 Super Bowl: What are NFL challenge rules?
NBA allows coach's challenge, replay reviews | Phnom Penh Post
Clippers vs. Bucks: Awful call leads to Doc Rivers ripping new rule
What can NBA coaches challenge during games? Explaining the new rule for the 2019-20 season | Sporting News
Business Times
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How college football instant replay works: See refs' NCAA rule - SBNation.com
Rule Changes: Early Returns on the NBA's Coach's Challenge - Blazer's Edge
NBA may use “Coach Challenge” rule next season
