2017 NFL Mock Draft: 49ers Selections for Each Round

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Sep 27, 2014; Auburn, AL, USA; Auburn Tigers defensive tackle Montravius Adams (1) celebrates an interception during the first half against the Louisiana Tech Bulldogs at Jordan Hare Stadium. Mandatory Credit: Shanna Lockwood-USA TODAY Sports /

Round 4, Pick No. 102 – Auburn DT Montravius Adams

A top 5-star recruit coming out of high school in Georgia, defensive tackle Montravius Adams is a monster in the trenches and can plug in right away as a rotational defensive tackle. The 49ers run defense struggled mightily this year, as depth was a major issue, which makes Adams a smart fit.

He is an above-average athlete for his size and has quick feet to get around blockers. This is a stacked position in the draft, so the Niners will do their due diligence in scouting multiple D-lineman throughout.

Round 4, Pick No. 139 – Illinois OLB Carroll Phillips

With Ahmad Brooks getting up there in age (32 years old) and inconsistency from Aaron Lynch, the pass rush can use some help on the outside.

Oct 31, 2015; University Park, PA, USA; Penn State Nittany Lions quarterback Christian Hackenberg (14) scrambles out of the pocket as Illinois Fighting Illini defensive end Carroll Phillips (6) defends during the third quarter at Beaver Stadium. Penn State won 39-0. Mandatory Credit: Rich Barnes-USA TODAY Sports /

Here the 49ers get good value in the fourth round with Illinois linebacker Carroll Phillips, who has totaled nine sacks on the year as a senior.

He is a first-round talent but has some off-the-field issues that should scare a lot of teams away from taking him earlier than the middle rounds.