OG is OK?

The first wave of relief for Knicks fans arrived shortly after 1 p.m. Thursday, when Shams Charania of ESPN reported that OG Anunoby would be listed as questionable for Friday’s Game 3 in Philadelphia.

According to Shams, Anunoby has been diagnosed with a right hamstring strain, which is never ideal news, but the injury is “not believed to be a serious s…