Dennis Smith Jr. has a chance to be the Knicks’ point guard of the future, but coach David Fizdale says veterans DeAndre Jordan and Wesley Matthews could have a longer stay in New York than some think.

The three new players acquired from Dallas in the Kristaps Porzingis trade were thrown right into the fire without a practice in the Knicks’ Super Bowl Sunday 96-84 defeat to Memphis at the Garden.

Jordan, who posted a double-double with 12 points and 12 rebounds, and Matthews were viewed as expiring contracts — some speculating they could be bought out.

That won’t happen, but Matthews is more likely to be traded by Thursday’s deadline than Jordan. The Knicks are hopeful Jordan, 30, will be a big influence on rookie Mitchell Robinson, who missed Sunday’s game with an illness.

The Knicks already have received multiple inquiries about Matthews. The Sixers are expected to have some interest at Thursday’s deadline as they search for the perfect bench piece, according to a source.

However, Fizdale said he feels Jordan — and even the defensive-minded Matthews — can have a future with the Knicks. Even if the Knicks use up their cap space on mega free agents, they could offer Jordan, a two-time all-defensive selection and former All-Star, their $5 million room exception.

“Both of those guys have played some [playoff] series on some really good basketball teams,” Fizdale said. “And who knows what the future holds for these guys? They’re ours now, free agents at the end of the year, but who knows? I want them to come here and enjoy the process with us and really help the young guys.”

With Jordan now wearing No. 6 — Porzingis’ old number — Enes Kanter’s days are numbered, and he could be waived after Thursday if he is not dealt.

Jordan’s defensive activity was his big thing in his prime. However, one NBA scout said, “He was really just a rebounder and shot-blocker and now he doesn’t block shots.”

Fizdale has a different estimation.

“If anybody can help us get better defensively, it’s DeAndre Jordan,” Fizdale said. “You’re talking about a defensive player of the year, one of the elite defensive bigs over the last six to eight years. Who better to show Mitchell — not only Mitchell, but really our perimeters, to be able to communicate behind them the way that he can, the way that he can police a defense? It’s like having a defensive coach out there.”

Even as he was the Knicks’ leading scorer on a day they shot 38.4 percent, Kevin Knox’s shooting woes continued. The rookie who was snubbed from the Rising Stars Challenge was 5-of-18 with zero assists and two turnovers, but scored 17 points. The Knicks are 1-25 when he starts. … Matthews scored five points in 28 minutes in his debut, shooting just 2-of-8. Matthews was 5-of-7 from the 3-point line Wednesday at the Garden in a Dallas uniform. He was 1-of-7 Sunday.