PHX Reporter

Marvin Harrison Jr. had a brief session with Cardinals senior director of media relations Chris Melvin on Wednesday as the media streamed in. The rookie receiver, experiencing a week of firsts, was about to meet the media during an open locker room for the first time.

He answered questions in front of his locker, located at the end of the receivers' row. Previously, that spot was associated with Larry Fitzgerald, although the team added two new stalls including Harrison's. Fitzgerald's actual former locker is now occupied by veteran Chris Moore.

Harrison acknowledges the high expectations but emphasizes he is not Fitzgerald or his Hall of Fame father Marvin Harrison Sr.

"There will never be another Larry," Harrison Jr. said. "If I could have half the career Larry had that would be great. I try and take it one day at a time and be the best version of myself I can be."

The fourth overall pick received advice from coach Jonathan Gannon to "be you" upon his arrival, and that's what Harrison aims for.

Despite playing only three snaps with no targets during preseason, there are high hopes for his NFL debut Sunday in Buffalo.

"I know fans are excited, but at the end of the day I have to go out and do what (offensive coordinator) Drew (Petzing) calls," quarterback Kyler Murray said. "I know what type of talent (Marvin) is and I know what he's capable of, but we have to go out there and do it."

Harrison's mental acuity has impressed those around him on offense. "I don't really view him as a rookie, to be honest," Murray said.

"The physical tools take care of themselves," Petzing noted. "I think we saw that in college and we would expect that to continue on this level and so far it has. From a coaching standpoint, it's more, 'Do you know what to do? Do you know how we need you to do it? Can we move you around the formation to allow you to do all the things you've done in your past?' I think (Harrison) has embraced that."

On Wednesday, Harrison appeared cheerful despite anticipating future nerves due to his commitment to success and helping his team win. The Cardinals possess multiple offensive weapons; Murray mentioned he expects tight end Trey McBride to have a "monster year." However, Harrison needs to play a pivotal role.

"This is what I've been waiting for," Harrison said, "to live out a dream."