He struggled at his new positions at the Senior Bowl and the NFL combine, showing little precision as a route runner and dropping about half the passes thrown his way. He also botched several punts.
"Had a bad performance, but I came back and knew what I had to work on so I continued to work on that and kept going with it," he said.
The Jaguars, though, have little concern about Robinson's hands even though he dropped a pass in the flat Friday.
"He's thrown a lot more than he's caught," Fisch said. "It's a repetition thing, and we need to work through that."
When Robinson returns to practice in two weeks, he will be behind injured starter Maurice Jones-Drew and free-agent signee Justin Forsett on the depth chart. But with Jones-Drew still unable to practice following foot surgery, Robinson will get plenty of reps.
"You always want to learn," he said. "You don't want to be a soaked-up sponge. You've got to take everything in. That's what I'm looking at: just taking everything in and trying to learn."
He wore No. 29 during his NFL debut, but still would like to don No. 16 — his college number. For that to happen, though, the Jaguars would have to list him as a receiver. It could happen. After all, the team is just starting to find a role for one of its newest and fastest players.
"It was a good start for him, although we don't talk much about the start," coach Gus Bradley said. "We're more concerned about how we finish, but it was good. One of our philosophies on offense is trying to get in playmakers' hands. ... That's why you saw him play some multiple positions just to see what he can do, what he can take on and give him a little bit of a flavor."