New York Knicks star JR Smith suspended by NBA

New York Knicks sixth man JR Smith has been suspended by the NBA after violating the league's substance abuse policy.

The 27-year-old tested positive for marijuana and now faces a five-game suspension, sources told Yahoo! Sports.

An official announcement has now appeared on the NBA website, and it will come as a huge blow for coach Mike Woodson as he prepares his team for training camp later this month.

Smith was a revelation in the regular season last year, before falling off the pace in the playoffs where the Knicks were eliminated by the Indiana Pacers in the semi-finals in the Eastern Conference.