Marc Trestman broke out the heaters in practice for the Bears this week. Jason Garrett sent the Cowboys outside on a bitterly cold day in Dallas.
Both coaches were preparing for a frigid Monday night game in Chicago, with temperatures likely to be in the teens and a wind chill possibly below zero.
‘‘Everything we’re doing is a dress rehearsal for Monday night,’’ Trestman said. ‘‘We can’t control the digits out there in terms of what the weather is. But we can go out there and work and practice fast and do it efficiently.’’
It’s like any other day for Trestman to simulate a December game in Chicago. Garrett was actually lucky that a rare winter storm covered the Dallas area in ice for two days. Full story for BostonGlobe.com subscribers.