Former NRL star Jarryd Hayne says his time in the San Francisco 49ers practice squad – which has included some bruising stints in the defensive team – has accelerated his NFL education and allowed him to go "from strength to strength".

Hayne said being dropped to the practice squad after being thrust head first into the NFL's big time with limited experience will allow him to make an even greater impact when he's given a second chance.

"The first week or two [after being dropped] it didn't really hit because I felt I was still learning the game, the basics of it," Hayne said.

"But now, having time out, and being able to take a step back and observe what I need to improve I feel like I'm ready. I'm ready if I get the call up.