A look at MLB's obstruction rule - The Boston Globe
World Series obstruction: Did the umps make the right call on the crazy play that ended Game 3?
Was Obstruction the Right Call to Make on Wild Last Play of Game 3? | Bleacher Report | Latest News, Videos and Highlights
Interference and Obstruction Rulings
Obstruction or Interference? You make the call - baseball rules. - YouTube
How the obstruction rule change affects plays at home | Softball rules, Rules, Obstruction
The MLB obstruction rule that ended Game 3 | For The Win
OAK@LAA: Melvin protests in 9th after obstruction - YouTube
Text of MLB obstruction rule cited in World Series - The San Diego Union-Tribune
World Series: Obstruction call becomes talk of baseball world
More on Rule 7.06, Obstruction - MLB | NBC Sports
Blocking the plate - Wikipedia
Defining Interference and Obstruction - Little League
Inside Pitch: A Club Coach Whose Daughter Was Injured Issues Call to “Get the Obstruction Rule Right!” - Extra Inning Softball
Baseball Rules Academy: So Explain This Obstruction Call — Inside the Seams
ASA Softball Rules on Obstruction
Ground Rules: Need Help on a Baseball Rule? Ask the Crew Chief!
Old Acts, New Rulings - Referee.com
Baseball Rules Academy: It's Interference, Never Call It Obstruction Again — Inside the Seams
Close Call Sports & Umpire Ejection Fantasy League: Baseball 101 - Interference vs Obstruction
What's the obstruction rule in baseball? | HowStuffWorks
One day later, John Farrell objects more to obstruction rule than obstruction call
The MLB obstruction rule that ended Game 3 | For The Win
MLB umpires still struggling to interpret home plate collision rule correctly - Sports Illustrated
Rule Quiz of the Week: Obstruction by a Pitcher | SportsEngine
