Orioles catcher Caleb Joseph is a rookie who has been forced into somewhat regular playing time due to the season-ending injury to Matt Wieters. Prior to Aug. 2, he had just three career homers in 156 plate appearances.
After this shot, though ...
... Joseph has now homered in five straight games.
Now, this isn't unheard of. I found 62 previous cases since 1993 in which a player homered in five consecutive games, but it's still something that doesn't qualify as commonplace. This is the second time this season someone has pulled it off (Devin Mesoraco did it). No one did it last season and only three guys pulled it off in 2012 (Chris Davis, A.J. Pierzynski and Mike Napoli -- what's with all the catchers?).
If Joseph homers again in his next two games, though, he's joining rarified air. Here are the guys who have homered in at least seven straight games since 1914, thanks to baseball-reference.com's play index streak finder:
Ken Griffey Jr., 8, 1993
Don Mattingly, 8, 1987
Dale Long, 8, 1956
Kevin Mench, 7, 2006
Barry Bonds, 7, 2004
Jim Thome, 7, 2002
The list of six straight games isn't too long, either. I found four from 1914-1950, six from 1951-76, one from 1977-93 and 10 times from 1994 to present. So with the above list, there have only been 27 cases of a player homering in six consecutive games since 1914.
Joseph isn't a guy who should be a surprise to hit a few homers. He has some power, having hit 22 homers in Double-A last season. But in his next game played, he'll have a shot to join a quite exclusive group.