Jennings was with the 49ers for 14 years and was a fan favorite.
Many were shocked McDermott, a UCLA product, beat out Jennings, who was famous for his consistency.
Yet, the rookie went out and had a flawless first NFL season. Any worry about the kid whiffing on snaps, quickly dissipated. He showed the same consistency that the venerable Jennings did.
Now that he is entering his second season, McDermott is hoping to become even better.
"There are bigger expectations now, because I've done it all once," McDermott said. "I just have to go and get better and better."
McDermott said he never worried about the pressure of replacing the longest tenured player on the team. He said he couldn't think about that. His only goal was to prove the 49ers right.
As he did last season, McDermott praised veteran kicker Phil Dawson and Andy Lee.
"They are unbelievable," McDermott said. "Without them, I could have had the success I had last year."