NEW YORK -- Twitter is proving to be one costly website for J.R. Smith.
The NBA fined the New York Knicks guard $25,000 on Friday for his Twitter exchange with Detroit Pistons guard Brandon Jennings.
The league said the penalty was for "directing hostile and inappropriate language to another player via his Twitter account."
Smith's latest Twitter flap -- he was fined $25,000 by the NBA last year for a racy tweet -- started Wednesday after Jennings made a critical comment about Smith's little brother, Chris, who also plays for the Knicks.
Jennings noted that Chris Smith is in the NBA though Pooh Jeter and Bobby Brown aren't. J.R. Smith, saying he is tired of people disrespecting his little brother, responded with a couple of tweets, including one that appeared threatening toward Detroit and was later taken down.
-- The Associated Press