Celtics source says Rondo may have torn ACL - getting MRI for it now at New England Baptist.— Mark Murphy (@Murf56) January 27, 2013
Sources close to Rajon Rondo tells Y! Sports that Celtics are still waiting on examination concerning a possible ACL injury.— Adrian Wojnarowski (@WojYahooNBA) January 27, 2013
Doris Burke reported that Jeff Twiss of the Celtics refuted any specific reports. They still don't know anything and are awaiting the results.
We'll update as details become available.