Jason Kidd has won the 2012-13 NBA Sportsmanship award.

Kidd won the award, which is given to a player who demonstrates ethical behavior, fair play and integrity, last season as well.

Luol Deng, Stephen Curry, Mike Conley, Nick Collison and Jameer Nelson were also nominated for the award.

Iman Shumpert tore his ACL a year ago and is not all the way back athletically, but he continues to get closer to full strength.

Shumpert had 12 points, 12 rebounds, two blocks and two steals in the New York Knicks' 97-90 overtime loss to the Boston Celtics on Sunday in Game 4.

"I'm not really thinking about my knee," Shumpert said. "We've just got to win games. I've got the whole summer to work on things, to get myself to where I want to be individually, athletically. But right now, with what we've got and how my knee feels, it's good enough to play and I've got to go out there and make plays."

J.R. Smith has been suspended for Sunday's Game 4 of the New York Knicks' first round series against the Boston Celtics, the NBA announced.

Smith threw an elbow and struck the chin of Jason Terry in Game 3.

Smith has averaged 16.3 points in the Knicks' three playoff games.

The Knicks have a 3-0 lead over the Celtics.

According to a source, J.R. Smith will likely opt out of his contract and become an unrestricted free agent after this season.

Smith signed a one-year deal with a player option last summer.

Smith has posted a career-year in his second season with the Knicks, averaging 18.1 points, 5.3 rebounds and 2.7 assists in 33.5 minutes off the bench.

Amar'e Stoudemire is optimistic that he can be available to return from his right knee injury in the time for the Eastern Conference Semifinals should the New York Knicks advance.

“If everything goes great, then I’m willing to play, and sooner than later, hopefully, if everything continues to improve. So we’ll see,” Stoudemire said. “I’m doing pretty good, actually. I’m progressing well, for the most part. Everything is on schedule, for the most part, as far as the recovery.”

Stoudemire was sidelined for the first 30 games of the regular season following a debridement procedure on his left knee, which he had again on his right knee on March 11.

“It’s the same exact procedure, and it may take the same recovery time, depending on the body. The body is unpredictable. Hopefully it heals sooner than eight weeks. If not, then I just have to be patient,” Stoudemire said. “The blessing is that we have such a great team and they’re doing so extremely well in these playoffs so far.

"If we continue to win, that gives me more time to really heal up 100 percent. That’s kind of the blessing that we have right now.”

J.R. Smith will be named the NBA's Sixth Man of the Year.

Smith averaged 18.1 points per game on 42.2 percent shooting from the field this season. His previous career high in points came in 09-10 when he averaged 15.4.

Smith had a PER of 17.6, up from 15.2 last season.

The New York Knicks have signed Earl Barron.

The Knicks had a roster spot become available following the retirement of Rasheed Wallace.

Barron played for the Washington Wizards earlier this season and was waived in December.

Rasheed Wallace has again retired from the NBA after battling injury issues throughout this season, the New York Knicks announced on Wednesday.

“Rasheed has given this team everything he had,” Mike Woodson said in a statement. “He is a winner, true professional and leader on and off the court. Due to his injury, he will not be available to play for us during the playoffs."

When healthy, Wallace fortified the Knicks' defense and provided floor spacing, averaging four points and four rebounds in 21 games.

Wallace, 38, had not played for the past two seasons before coming out of retirement for the Knicks.

The New York Knicks announced on Tuesday that they signed Quentin Richardson for the rest of the season.

A 12-year NBA veteran, Richardson played four seasons with the Knicks from 2005 to 2009. He has career averages of 10.3 points and 4.7 rebounds.

Richardson had not played for an NBA team this season and will be eligible for the playoffs.

The Knicks were pursuing a wing player after releasing Solomon Jones on Monday.

The New York Knicks defeated the Indiana Pacers 90-80 on Sunday afternoon to clinch the No. 2 seed in the Eastern Conference.

The Pacers are currently third, two games ahead of the Brooklyn Nets.