WASHINGTON - Jerian Grant isn't your average NBA rookie, and that's what drew the Knicks to him.

Grant played four years at Notre Dame and has impressive genes. His father (Harvey) and uncle (Horace) played in the league and his brother (Jerami) is with the 76ers. Grant turned 23 Friday night, which is old for a first-year player.

The Knicks' prized rookie, Kristaps Porzingis, is 20, and much of the talk is about how good he will be eventually. Grant is far from a finished product, but his age, experience and bloodlines give him an advantage.

"Jerian's maturity as a rookie is something that was always impressive to us even talking to him at the Chicago combine," coach Derek Fisher said. "I don't think he's necessarily afraid of any moment out there. That's why he's able to make some of the plays that he makes."

Grant has looked comfortable running the Knicks in his first two NBA preseason games, although he didn't shoot the ball well in Friday night's 115-104 win over the Wizards.

Playing in front of his parents, Grant shot 2-for-9 and totaled eight points and two assists in 24 minutes off the bench. He continues to show the ability to get into the paint and create for himself or his teammates. The Knicks haven't had that type of player in some time.

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"I think he has a good feel for the game," Fisher said. "He has a pedigree in his family. The NBA doesn't seem daunting to him. He's seen it his whole life. I don't know if there's anything he's concerned about when he's out there. We just want him to be able to take care of the basketball. That's what good young guards have to learn."

Carmelo Anthony was sharp again, shooting 10-for-15 and scoring 21 points in 25 minutes. He's shooting 18-for-25 in two games.

Porzingis was more aggressive and played much better than he did on Wednesday night. He had nine points, 10 rebounds, three assists and two blocks in 21 minutes.

The Knicks acquired the rights to Grant, the 19th pick, in a draft-night deal for Tim Hardaway Jr. Grant is 6-5, so he can play both backcourt positions and guard them as well.

"I feel like I bring a lot to both [ends]," Grant said. "Offensively, I think my playmaking skills help get easy shots for everybody. On the other end, I think I bring a different type of quickness and length to use against some of these great point guards in the NBA."

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Notes & quotes: Arron Afflalo (strained left hamstring) remains out and said he probably won't play Monday against Philadelphia. The veteran swingman hopes to practice next week and play Friday . . . Kevin Seraphin (sore right knee) also was unavailable.