Four home runs have been hit back-to-back seven times in Major League Baseball. On separate occasions, playing for different teams, two brothers have participated in these strings of home runs, one of them twice. Name those two brothers.
J.D. Drew, as a player for the Los Angeles Dodgers, hit the 2nd home run in a four-in-a-row string against the San Diego Padres on 9/18/2006. He then repeated the feat with the Boston Red Sox also as the 2nd home run in four-in-a-row against the New York Yankees on 4/22/2007. His brother, Stephen Drew, completed a four-in-a-row string for the Arizona Diamondbacks against the Milwaukee Brewers on 8/11/2010.