Weed Identification & Brown Spot
First off, I'm not entirely certain what type of grass I have but I believe it's a fescue? I'm hoping someone can help me out and maybe offer some advice as to what I can/should be doing, thanks in advance.
I have been seeing the weed in the first pic every year and have no idea what's it called or what to do about it.
Then, starting sometime last year around late summer I think, a small brown spot developed and has gradually grown to what you see in the pic below. Is this some sort of fungus or disease?