Photo of Soma Vainuku

Combine Results

4.8 ?
  • 4.68 SEC
    Top Performer
  • 26 REPS
    Top Performer
  • 32.0 INCH
    Top Performer
  • 108.0 INCH
    Top Performer
Blue Star  =  Combine Top Performer

Draft Analysis:

  • 5'11" Height
  • 32 3/4" Arm Length
  • 246LBS. Weight
  • 9 1/2" Hands


The cousin of former USC star and Bengals linebacker Rey Maualuga brings his full effort on every play. Vainuku, who had 2,202 rushing yards as a high school senior, didn't have much for offensive statistics in 2015 (two carries for four yards, one score, no receptions). In fact, he never carried the ball more than 10 times in a season for the Trojans (24 total carries for 148 yards and three TD) and only contributed as a receiver in his redshirt freshman (8-50) and sophomore (9-74, 1 TD) seasons. But he did make his presence felt on special teams each season, making 13 tackles on coverage units in 2013 and 2015, and blocking three punts as a sophomore. Vainuku was named first team All-Pac-12 on special teams and the Trojans' Special Teams Player of the Year for his 2013 efforts, and garnered second team All-Pac-12 honors as a senior for his special teams acumen.

Pro Day Results

40-yard dash: 4.64 seconds
Short shuttle: 4.44 seconds
3-cone: 7.16 seconds



Wide frame. Runs well enough to get outside as a lead blocker. More athletic than expected for a big fullback. On cover teams, is able to change directions in space and chase return man with decent speed. Finished his USC tenure with 37 special teams tackles. Team­-first player. Father was a Rugby star in Tonga.


Had three 15-­yard penalties this year with limited amount of snaps. Must learn to play under control. Beaten out as Trojans' top option as lead blocker. Doesn't take control of defender's outside shoulder to secure the edge on outside flowing plays. Needs to play with more hip and knee bend to improve leverage at the point of attack. Hasn’t caught a pass in two years.

Draft Projection

Undrafted free agent

Bottom Line

While he has the desired size as a hammer­head lead blocker, he doesn’t consistently get blocks secured and his value in the passing game is very little. Vainuku's production on special teams will give him an outside shot to make a roster, but he has to prove to a team he can be a legitimate fullback option as it is unlikely that he will earn a spot as just a special teams ace.
-Lance Zierlein
Grade Title
9.00-10 Once-in-lifetime player
8.00-9.00 Perennial All-Pro
7.50-7.99 Future All-Pro
7.00-7.49 Pro Bowl to All-Pro Ability
6.50-6.99 Good NFL Starter with Pro Bowl Potential
6.00-6.49 Chance to become good NFL starter
5.70-5.99 Could become early NFL starter
5.30-5.69 Backup or eventual starter
5.15-5.29 Developmental prospect or special teams potential
5.01-5.14 Back end of the roster
5.00 50/50 Chance of making the roster