Jeff Hafley emphasizes mental toughness for Miami Dolphins at practice

Miami Dolphins coach Jeff Hafley stressed the importance of mental composure during a joint practice with the New York Giants on August 20, 2026. Hafley noted that emotional control is as critical as physical skills, especially in intense conditions. Despite the high heat index leading to some on-field incidents, Hafley advised players against fighting, saying it is counterproductive to their objectives. He highlighted the need for players to focus on the next play rather than retaliate, reinforcing a culture of mutual respect within the league. With the preseason ongoing, Hafley’s messages aim to prevent penalties that could hinder the team's performance in games to come.

• 8:21 PMYahoo Sports — Jeff Hafley: Miami Dolphins must learn what 'mentally tough' is