49ers vs. Ravens: 6 players to watch on defense

The 49ers defense faces its toughest test of the year against the Ravens.

DL DeForest Buckner

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Bucker also had two sacks against Murray and Wilson and didn’t seemed too phased by their ability to run. Buckner also could have a favorable matchup Sunday against back-up center Patrick Mekari who’s making the first start of his NFL career. Buckner, while not as productive in the stat column as last season, has been a presence up the middle of the 49ers line and could be in for a big day against the rookie center. Collapsing the middle of the line and blowing up the run game is vital to stopping the Ravens’ offense.