This was becoming clear even before the four homer game. His OPS was .982, for crying out loud. He had homered seven times in his previous 16 games. The gasps and whispers had already started.

All of baseball was abuzz Friday as Nick Kurtz piled up hits and homers in an "awe inspiring" performance for the Sacramento A's. Scouts rave about the 22-year-old's advanced approach.

Nick Kurtz of the Athletics has become the first rookie in Major League Baseball history to hit four home runs in a game.