Rockies pitcher Jason Gurka strikes out four batters ... in one inning

MLB's official rules state that there are only three outs in one inning. So, if a pitcher wants to strike out the side, he would need to strike out three batters. But the Rockies' Jason Gurka, perhaps trying to impress his way onto the team's Opening Day roster, decided to take things a step further during Colorado's 8-6 win over the Giants on Wednesday -- striking out four hitters in one frame:

OK, yes -- this only happened because of the dropped third strike to Rando Moreno, but it's still rare and pretty impressive. Only 74 big leaguers have ever done it. Let's hope he goes for five (or just all 27) next time out.