As pro day quarterbacks tend to do, Caleb Williams entered with a script.
And as tends to happen at pro days, that script required on-field adjustments Wednesday at USC.
The expected No. 1 overall selection of the 2024 NFL Draft was scheduled to throw about 50 times in a routine featuring three receivers.
Then wide receiver John Jackson, a former USC player who finished his career at Nevada, tweaked his hamstring in an earlier drill.
Suddenly, a few routes needed to be cut. The depth of other routes, adjusted. The order and pacing had to be reconfigured to spell receivers Brenden Rice and Tahj Washington, who each now carried a more substantial workload.