FYI, from list of worst NFL fields:
17. Pittsburgh Steelers: Heinz Field, Pittsburgh, Penn.
Many folks following field conditions may be surprised that Pittsburgh doesn’t drop farther down this list. But the past woes of Pittsburgh near-dirt and waterlogged fields have changed with a renewed focus on natural grass. Using the Grassmaster system meant that Pittsburgh wasn’t able to replace sod midway through a season, leading to tough conditions late in seasons. Resodding is often a must in cool-weather climates. But since going to an all-natural Kentucky bluegrass, the Steelers can replace the field multiple times, improving their turf conditions throughout the season.
The Steelers play there Sunday...not sure what to expect.