Not a lot of NBAers would be staying in the lineup if they had Amir Johnson's issues.

The question of pain

threshold varies mightily throughout the league (including on the Raptors).

Johnson has arguably been Toronto's best player over the past month or so (with apologies to Jose Calderon, who also has excelled) and he's been doing it on an ankle that can charitably be termed a "bum" one.

That's understating things.