O Brother, You're Right Here!

After the Braves acquired Justin Upton, uniting him and brother B.J. Upton on the same team, our very own Jeff Sullivan got curious about brothers playing together, and presented some salient information on the brother effect. Or more to the point, the lack thereof. I became curious about it much after that (I’m slow), and while Jeff already did the pertinent research, nobody has ever accused me of doing pertinent research, so I thought today we could look at the best seasons put together by brothers on the same team.

Fangraphs