My 13 year old long haired tabby is a generally happy chap, if a bit inclined to sleep most of the day, and generally grooms himself well with a brush from us once a day. However, I have recently noticed matted fur appearing directly under his chin- I have never seen him grooming there, so I assume that’s why. Unfortunately though , I am finding it almost impossible to get a brush under there- he just won’t have it at all. I am the only adult in the house, so a team effort isn’t possible. Does anyone have any suggestions please? I’ve added photos for the cat tax!