Source: Zach Harper, CBS Sports 
The Twitter war of words between the Smith family and Brandon Jennings is officially under investigation by the NBA. After Jennings questioned the employment status of New York Knicks’ guard Chris Smith, brother of J.R. Smith, J.R. fired back at Jennings.
The NBA didn’t take kindly to such a display on social media and is looking into the matter, according to ESPN New York.
The NBA is investigating the Twitter feud between New York’s J.R. Smith and Detroit’s Brandon Jennings over the presence of Smith’s brother, Chris, on the Knicks’ roster, sources close to the process told ESPN.com’s Marc Stein.
The teams meet Tuesday in Detroit, but the league office is expected to rule before then whether anything said between the two can be deemed threatening.
When asked about the exchange and his comments Thursday night, J.R. Smith said that he didn’t mean to threaten the Detroit Pistons point guard with his tweet and that none of this was all that serious.