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CONCACAF appoint former MLS referee Brian Hall director of refereeing
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IFAB announces experimental plan to introduce video replay in soccer matches
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Offside calls, bench behavior and dissent among points of emphasis for MLS referees in 2016
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Referee assignments for MLS's first week of the 2016 season announced by the Professional Referee Organization
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Check out the new substitution board to be used on the sidelines of MLS games in 2016
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Jair Marrufo named head official for 2015 MLS Cup final
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Professional Referee Organization announces referee assignments for MLS Conference Championship Leg 2 matches
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Professional Referee Organization announces referee assignments for MLS Conference Championship Leg 1 matches
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Referees explain controversial offside calls in Columbus Crew SC's second leg win over Montreal Impact
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Referee assignments for Conference Semifinals 2nd legs
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Professional Referee Organization announces referee assignments for Knockout Round of 2015 Audi MLS Cup Playoffs
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WATCH: New video takes fans into the action with MLS referees
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Full disciplinary guidelines for the 2015 Audi MLS Cup Playoffs
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Professional Referee Organization announces referee assignments for Week 34 of the 2015 MLS season
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Professional Referee Organization announces referee assignments for Week 33 of 2015 MLS season
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Professional Referee Organization announces referee assignments for Week 32 of 2015 MLS season
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Open Cup: U.S. Soccer announces Ted Unkel will officiate Wednesday's final
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Professional Referee Organization announces referee assignments for Week 30 of the 2015 MLS season
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Need to get in shape? Soccer's assistant referees rack up surprising mileage each match | SIDELINE
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Professional Referee Organization announces referee assignments for Week 29 of 2015 MLS season
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Portland Timbers coach Caleb Porter criticizes "poorly managed" game from referees in loss to Seattle Sounders
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Professional Referee Organization announces referee assignments for Week 26 of 2015 MLS season
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Professional Referee Organization announces referee assignments for Week 24 of 2015 MLS season
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CONCACAF announces review of confederation’s Refereeing Department in wake of Gold Cup controversy
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Watch referee Joel Aguilar lose control of his vanishing spray in the Gold Cup final | SIDELINE
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All-Star: PRO assigns Ismail Elfath to referee Wednesday's AT&T MLS All-Star Game in Colorado
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Gold Cup: CONCACAF releases statement on officiating in Panama-Mexico semifinal
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Independent Review Panel rescinds Orlando City SC forward Cyle Larin's red card
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Portland boss Caleb Porter wants games "managed better" after draw with Vancouver is riddled by cards
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Professional Referee Organization announces referee assignments for Week 21 of 2015 MLS season
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Professional Referee Organization announces referee assignments for Week 19 of 2015 MLS season
 

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