NFL teams are always doing everything they can do to get a competitive edge. According to Dolphins’ writer Joe Schad, Miami is going to the extremes to prepare themselves to go play in a frigid Heinz Field this weekend against the Steelers.

The Miami Dolphins put balls in a freezer to prepare for Pittsburgh weather. But they thaw out almost immediately. — Joe Schad (@schadjoe) January 5, 2017

Truth be told, it’s not that unusual for teams to try and simulate weather and climate extremes whenever they can. It sounds like the highs on Sunday in Pittsburgh will be in the teens, which presents an entirely different set of problems for teams and players, especially those who are accustomed to playing in harsh weather. This is particularly true of the cold.

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When the Steelers took on the Buffalo Bills earlier in the season, Buffalo quarterback Tyrod Taylor admitted after a poor performance that it was the first time he’d played a game in weather like that. If you think players aren’t impacted by extreme cold you are kidding yourself. Some guys are naturally just better at dealing with it and some guys acclimate. But if it isn’t something you are used to, there’s nothing fun about playing football in extreme cold and freezing your balls won’t help.