Last year (70+).
Perrin said it would likely be fewer this year because they're having a hard time getting the players slotted 12-20 to come in. Most sure 1st-rounder's only do 8-10 workouts and generally no back-to-backs. But it's really not that big a deal. Most go to the combine for at least the interview portion. Then they have staged workouts in places like NY, Chicago or LA where GM's from several teams attend.
That's pretty amazing. But with such a stacked draft, a few of the late-lottery to late-teen picks are going to slide and wish they had been seen by some other teams. It will be fun to see who slides.