Welp, the task of beating the Heat just got harder. Rajon Rondo is out against the Heat with hyper-extended knee.

For those watching the ABC broadcast, I think Bill Simmons summed it up nicely with his head buried in his hands.

Yeah.

Update: He's headed to the hospital to get an MRI.

Aaaaarrrrgggghhhhhh.

Update: And the hits keep on coming, Mark Murphy is reporting that the Celts fear an ACL tear.

Celtics source says Rondo may have torn ACL - getting MRI for it now at New England Baptist.

— Mark Murphy (@Murf56) January 27, 2013

We'll have more on this story as it develops. Needless to say, if Rondo is done, so is our season.