If Rondale Moore had a welcome to the NFL moment, the rookie wide receiver said, it was probably when he was able to buy his mother a new home in the last week.

But perhaps his real welcome to the NFL moment was revealing he had bought his mother a home back in New Albany, Indiana to a press conference full of reporters when he had yet to tell his mom. He didn't even know when or how he would deliver the news given that he was stuck at State Farm Stadium for training camp.

"I have to figure that out," Moore said.

Then you probably shouldn't have brought it up in a press conference, right Rondale?

"Probably not," he said with a smile.

However the news is delivered, it doesn't make it any less impressive from the second-round wideout, who has done some other impressing a week into his first training camp. For a team expected to run DeAndre Hopkins, A.J. Green and Christian Kirk out as a talented top three, Moore could be an 'X' factor the Cards have been hoping to find since Kliff Kingsbury became coach.

Moore, a 5-foot-8, 180-pound swift and shifty boulder of a man, has found cracks in both the middle and down the field of the defense. He looks comfortable and Kingsbury loves his process, even if as a rookie he is far from perfect.

"Since day one, he's acted like he belongs here," Kingsbury said.

Moore wasn't about to grade his positive plays yet, or that he has left an impression. "I don't measure it that way," he said, repeatedly talking about studying his playbook and grinding at his craft.

He's got Hopkins on one side and Green on the other, and with that, he noted, it's impossible not to be humble. Hopkins was willing to help in that regard too.

"He has a lot to improve to impress me," Hopkins said. "For me, he really hasn't done anything."

Said Moore, "He's right. On the larger scale of things, I haven't done anything."

The idea was that Moore would also walk in and take over kickoff and punt return duties. Special teams coordinator Jeff Rodgers loves that Moore can move vertically and laterally without breaking stride, an important trait in the return game. But Rodgers won't make any promises about who gets the job until preseason games, and Moore says he'll do whatever the coaches ask.

(Although Moore added about retuning kicks and punts, "I love it.")

The preseason will show exactly what Moore can do not only in the return game but also the passing game. It's hard to imagine him not having a role, although that was evident from the time the Cardinals spent a second-round pick on him.

Moore has been driven to get here, graduating from Purdue in three years and making the plan to buy his mother a house since he began playing football as a kid, a goal "probably at the top of my list."

It hasn't been simple, given that he's in Arizona. He did shopping back in Ohio when he was back home training before camp, and like many in the market for house right now, felt some sticker shock with the "insane" housing prices.

Moore is a guy who is careful with his paychecks – "He doesn't spend money at all," Kingsbury said – and was quick to note he himself will not be buying a house right now. Kingsbury said he wasn't about to give the kid any advice either.

"He doesn't want to hear it from me about buying a home," Kingsbury said with a smile. "I go outside of my means on that."

But Mom's new home, that was a moment Moore cherished.

"In that same breath you can feel like you have arrived or made it," Moore said. "So (now) it's continuing to stay down, continue to grind and write down some new goals."

As soon as he calls his mom to tell her about the house.