Celtics officially sign Barbosa

With Barbosa not suiting up for the Nets game, there was some questions regarding Barbosa's signing earlier today. Those can now be put to rest, the Celtics officially announced the signing.
Celtics.com

The Celtics announced today that they have signed former Sixth Man of the Year Leandro Barbosa. Barbosa is a nine-year NBA veteran who owns career averages of 12.5 PPG, 2.2 RPG and 2.4 APG.

More on Barbosa:
Leandro Barbosa not playing in Celtics-Nets game tonight
Leandro Barbosa: The Brazilian Blur in Boston
Celtics sign Leandro Barbosa