In the 1959 Candidates, Fischer and Keres played 4 decisive games, all won by the Black pieces. Three of them, were really tense, interesting battles.
Here's the other one. Keres goes pawn grabbing in the opening, gets his King stuck in the center, tries to weather it all and keep the pawn, but is so worn out by the thankless, defensive drudgery that he hangs a piece to a simple fork with 24. Bb5. Yech. Awful game. If you only look at anthologies instead of tournament books, you might forget that GM's, even top ones, sometimes play games like this, too.