WHAT TO WATCH

AB’s BACK: Pittsburgh All-Pro wide receiver Antonio Brown is expected to play after missing the final 2½ games of the regular season with a left calf contusion. Brown practiced all week, though he was sent home on Friday because of an illness. Brown caught 10 passes for 157 yards in the first meeting with Jacksonville.

LEONARD’S LEAP: Jaguars rookie back Leonard Fournette hammered the Steelers for a seasonhigh 181 yards in October, including a 2-yard TD leap and a 90-yard sprint to the end zone in the final two minutes that sealed it. Fournette’s production has dipped in recent weeks. He’s only averaged higher than 3.9 yards per carry once over the past eight weeks.

CHILL OUT DUDE: Temperatures are expected to be in the teens at kickoff, a decided departure for the Jaguars. While Jacksonville coach Doug Marrone downplayed the elements, Pittsburgh running back Le’Veon Bellbelieves he has an advantage when the mercury drops. A year ago against Miami in the wild-card round, he pounded the Dolphins for 167 yards and two TDs as the temperature hovered around 17 degrees.

COACH SHAY: Injured Steelers linebacker Ryan Shazier spent some time at the team’s facility this week, getting around in a wheelchair while recovering from spinal stabilization surgery last month following a hit against Cincinnati that left his lower body motionless. Shazier’s presence has provided the Steelers with a boost, and while his football career is likely over, he remains intent on finding a way to contribute. Shazier, who would get to work as early as 6 a.m. to break down film when he was playing, is now serving as equal parts advance scout and motivational speaker.