When you want to grill burgers but it's too cold outside or you don't have the space, there are plenty of top-rated indoor grill options.

The legendary George Foreman tells TMZ Sports he has a message for Bernard Hopkins -- HANG 'EM UP ... while you still have your health. Foreman -- who famously fought until he was 48-years-old ...

Some of the panini presses below open a full 180 degrees so that the top plate essentially becomes another bottom, creating a surface that is double the original size. Others only lift partway ...