It turns out that "Who" isn't on first after all. He must be playing another position tonight because clearly "Nobody" is covering first base on this play.
Let's watch again in GIF form!
Who’s on first? http://t.co/cKstgRVKVn pic.twitter.com/GGYKdTvMni— MLB GIFS (@MLBGIFs) July 7, 2015