Sunday is Monkey Covers day here at YACB. Because there's nothing better than a comic with a monkey on the cover.
Wally West and Hal Jordan get their butts handed to them courtesy of Gorilla Grodd on the cover to 1992's Green Lantern #30 by artists Mark "Doc" Bright and Romeo Tanghal.
(Standard disclaimer about evil telepathic gorillas not really being monkeys applies.)
Image courtesy of the GCD. Click on the image for a larger version.