The 49ers defense will look to recover from its worst performance of the season against the Cardinals. They’ll take on a Seattle offense with plenty of weapons, led by MVP-candidate quarterback Russell Wilson. With linebacker Kwon Alexander out for the remainder of the season, Dre Greenlaw will step into the role in the biggest game of the year.
Along with Greenlaw, here are the six players to watch on the 49ers defense:
LB Dre Greenlaw 
(Photo by Jayne Kamin-Oncea/Getty Images)
Greenlaw will attempt to fill the Kwon Alexander-sized hole in the defense after losing the linebacker for the season to a torn pec. Greenlaw saw 56 snaps in Week 1 after Alexander was ejected in the first quarter, but hasn’t seen more than 30 since then. That will change Monday night with the rookie fifth-round pick expected to start at Will linebacker. While he might not
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