The subfloor is rotting a bit where the bathroom was leaking so I cut away what I could reach but I ran into the wall along with a joist directly next to it.

My finger shows about how much wood is left. The good news is that the next wall over was recently replaced hardwoods and the water has been off where the wood is rotted since before the hardwoods were installed and they removed the particle board when installing the hardwoods.

I’m thinking I just need to get that bit of wood out, but I’m not sure the best way to do it because of where the joist is located?