LB Dre Greenlaw | 2019 | Round 5, Pick 148
There wasn’t a roster spot carved out for Greenlaw when the 49ers selected him 148th overall in last year’s draft. The club drafted Warner previous year and signed Kwon Alexander to a massive contract before the draft. Greenlaw managed to not only grab the starting Sam linebacker spot, he filled in at Will when Alexander went down with a torn pectoral in Week 9 last season. Greenlaw wound up grading out as the second-best linebacker on the team per Pro Football Focus, and he was by far their best tackler at the position. His goal-line stop against the Seahawks to seal a Week 17 win and the NFC West crown was perhaps the biggest play of the season for San Francisco. Not bad for a Day 3 pick.