Posted by Sabrina B. @gametimegirl

Welcome to NY!  This was confirmed by the man himself, check it out after the jump…

A short time ago, the New York Knicks had a lot of question marks. Now it appears they’re building a juggernaut.

Shooting guard J.R. Smith tweeted Friday that he has decided to join Carmelo Anthony, Amare Stoudemire and phenom Jeremy Lin in New York.

Smith, who played last season with the Denver Nuggets, had listed the Knicks, Clippers, Lakers, Magic, Bulls and Pacers as teams he was considering joining after a stint in China that started during the NBA lockout.

No contract terms were available, but the Knicks were able to offer Smith a pro-rated share of their $2.5 million mini mid-level exception and a player option for a second year.

Smith was due to fly back to the United States from China late Wednesday night. The New York Post reported that Smith will join the team Friday night at the Garden but will make his on-court debut Sunday against the Mavericks.

The New York Daily News had reported Thursday that the two sides were closing in on a deal. Smith’s agent, Leon Rose, met with Madison Square Garden chairman James Dolan after Wednesday’s Knicks game, the newspaper reported.

The Clippers, meanwhile, could offer Smith only the veteran’s minimum for the rest of this season.

Smith is a former teammate of Anthony’s in Denver. He averaged 12.3 points and 4.1 rebounds in 2010-11, shooting 39 percent from 3-point range. He has averaged 12.5 points per game during his seven-year career.

Smith started his career straight out of high school, getting drafted by the Hornets in 2004. In 2006, he was traded, along with P.J. Brown, to the Bulls for current Knicks center Tyson Chandler. The Bulls, though, shipped him to Denver six days later for Howard Eisley and draft picks.

There have been concerns about Smith’s attitude over the years. In December 2006, he was involved in a brawl at Madison Square Garden between the Knicks and Nuggets. It was the worst fight in the NBA since the infamous melee in Detroit between the Pistons and Pacers two years before. For their parts in the NY brawl, Smith and Anthony were suspended 10 and 15 games, respectively, the most of any players.

In June 2007, Smith was involved in a car accident in which his friend Andre Bell was killed. Smith received a 90-day jail sentence for the incident but only had to serve 30. He also received a seven-game suspension from the NBA in 2009-10 for his guilty plea.

In October 2007, Smith was involved in a nightclub incident in Denver and was suspended the first three games of that season.

WRITTEN BY Information from ESPNLosAngeles.com’s Ramona Shelburne and ESPN.com senior writer Marc Stein contributed to this report & FULL STORY HERE