Rule tweak made Shane McGuigan red card 'a massive learning experience' for Derry

"It’s the first time it happened in a Division 1 game and now everyone has seen it," Derry manager Paddy Tally said about McGuigan's red card. "I think any manager looking it is saying, ‘Jesus, this changes everything.’"

Derry lost Shane McGuigan to a red card in the first half against Armagh. They subsequently conceded four goals after the break, losing by 15 points. Pic: Ramsey Cardy/Sportsfile

Derry manager Paddy Tally predicts red cards will have greater impacts on the outcome of games because of the recent tweak to the three-up rule.

Since Round 6 of the Allianz Football League the weekend before last, teams have had to retain three players in the opposition’s half of the field irrespective of how many players they have on the field.