[10] Baker played in 33 games with 25 starts in his career at Ohio State, and was named Honorable Mention All-Big 10 in 2016 and 2017, both seasons in which he was a full-time starter.
[11] On January 8, 2018, Baker released a statement on his Twitter account announcing his decision to forgo his remaining eligibility and enter the 2018 NFL draft.
[21] Throughout training camp, Baker competed to be the starting strongside linebacker after the role was left vacant by the departure of Lawrence Timmons.
[22] Head coach Adam Gase named Baker and Kiko Alonso the starting outside linebackers to begin the regular season.
[24] On November 4, Baker made five combined tackles, a pass deflection, and caught his first career interception during the Dolphins' 13–6 win against the New York Jets in Week 9.
[25] He finished his rookie season with 79 combined tackles (57 solos), three pass deflections, three sacks, one interception, and one touchdown in 16 games with 11 starts.
[28] In Week 15 against the New York Giants, Baker recorded a team-high 12 tackles and intercepted a pass thrown by Eli Manning during the 36–20 loss.
[32] In Week 1 against the Patriots, Baker recorded a team-high 16 tackles (12 solo), sacked quarterback Cam Newton once, and forced wide receiver N'Keal Harry to fumble the football in the endzone for a touchback during the 21–11 loss.
[33] In Week 14 against the Kansas City Chiefs, Baker led the team with 9 tackles and sacked Patrick Mahomes 2.5 times during the 33–27 loss.