I did the same as mostly everyone else .I youtubed him and watched his vs tapes . What grade did you have on him? Is he a world beater that somehow didn't go in the first 3 rounds?
Copied directly from my PRE-COMBINE Mock Draft:
Round 4 Pick #1 -
Shaquem Griffin ILB/OLB UCF
Analysis: Many people have Griffin rated as a Day 3 pick, and some even have him rated as a 7th round pick or UDFA. Personally, I think this is similar to the disrespect Aaron Donald was given throughout his senior season before he blew up at the Senior Bowl. Donald's size scared teams. Griffin's missing hand also likely scares teams. However, after the Senior Bowl and Combine, it was clear that Donald's size issues were overblown. I expect the same to be true with Griffin after the Combine. He already had a great Senior Bowl week and won Practice Player of the Week. I expect him to dominate at the Combine by posting great jump and agility numbers and running a 40 in the 4.45 to 4.55 range. Griffin checks in at 6'0" 222 with surprising power and elite burst/speed. Griffin closes like few can at the LB position. He's been a highly-effective pass rusher because of his ability diverse set of rush moves and evolved pass rush plan along with his elite speed and quickness off the edge. He doesn't have the size to hold up as an edge, but he should be an effective blitzer. Griffin has had plenty of snaps in coverage and shows the athleticism to handle M2M coverage responsibilities in the NFL. In the running game, he's a sideline-to-sideline LB who will sift through traffic to make TFLs. He can also close from the backside due to his incredible speed. Despite his small stature, Griffin has shown the ability to work off of and through blockers. Griffin's missing hand can limit him at times. It can make it harder for him to disengage from blocks and can cause him to miss tackles. However, Griffin's unique blend of elite speed for his position along with top-notch instincts means that the tackles he generally misses due to his hand are tackles that few other LBs would have been in a position to make. Griffin is a film room junkie who went as far as to put his mattress in there during camp. It shows in his play through his tremendous instincts, tendency to be in the right place at the right time, and his evolved pass rush plan. Simply put, if Griffin had two hands, I think he'd be considered one of the top players in the Draft. His game reminds me of Lavonte David and Deion Jones.