Smith-Schuster didn't practice Wednesday due to a knee injury, Missi Matthews of the Steelers' official site reports.
Smith-Schuster has regularly sat out Wednesday practices this season, and Brian Batko of the Pittsburgh Post-Gazette relays that the wideout's absence this week can be considered a rest day, despite his injury designation. The 23-year-old is coming off a season-high 93-yard outing in last week's win over the Cowboys.