Week or so ago I was the grocery store and in the marked down meat bin
they had a few packages of beef chuck steak and I bought about 2 or 3
packages. Looks really good, but will this need to be marinated to
tender before grilling? I've not cooked it before and didn't want to
be eating something with the consistency of shoe leather if marinating
will greatly benefit this cut of beef.

Any help/suggestions are welcome.