I don't know how his personal split is set up but I'm sure there are and squats in the mix too. That's based on how I've seen sprinters train.
A clean in the athletic world is the best way to mimic game situation though. That means that if you aren't hitting the lift with proper explosiveness and coordindination you will miss the lift. Its the same for Usain on race day...if he doesn't hit all the proper combo of power with no wasted motion he's done.
In the clean see how his arms and traps move? That's the pumping movement required to cut through wind. Each rep is BOOM BOOM BOOM
When we talk about athletes specificity is key.
A heavy deadlift would be a no go for a sprinter if I were training them. Convi deads will cause some to develop a wider waist and that slows them down.