Danilo Gallinari knows it's just business -- but that doesn't make leaving the Knicks any easier for him.

"To be honest with you, it's tough to leave New York. It's tough," the forward said after what became his final Knicks practice. "But it's a part of the NBA life and it's a part of how the NBA works.

"You've got to live with that."

Gallinari was traded to Denver last night in the long-delayed deal for Carmelo Anthony.

A Knick for all of his three-year career and someone who has known coach Mike D'Antoni for years, Gallinari was Donnie Walsh's first draft pick as team president in 2008. Other than Wilson Chandler -- who also was part of the Anthony deal -- he was the longest-tenured Knick.

The 22-year-old, who averaged 15.9 points and 4.8 rebounds for the Knicks this season, said he understands the NBA does business differently than they do in Europe.

"When you come play here, it's a different thing," Gallinari said. "You can be traded and you've got to work every day and think about your job and you cannot think about all the other stuff. That's what I've been doing since I came here."

Yesterday's practice was odd, considering the ongoing Anthony talk. Walsh wasn't available to reporters, and neither were Raymond Felton (another piece in the deal) and Chandler. Amar'e Stoudemire also was not at practice because he hadn't returned from Los Angeles, where he played in the All-Star Game on Sunday. Before speaking to reporters, Gallinari had a lengthy discussion with a team public relations official.