A new boxer has come to our gym, as you can guess he is a swarmer. Basically his game plan is bull rush, throwing hooks (both hands) with the occasional straight thrown in, then when he has you against the ropes he usually tucks his head between your elbows and tries to hammer at your body. His head movement is minimal and doesn't mind getting hit in the head; with his normal stance having a low left lead and his right covering the front of his chin.

Anyone have any experience with these sort of boxers and share any advice which could help me combat this sort of fighter?