"Yeah, I watched pretty much every one of them when we weren't playing," said Drew, the Boston right fielder. "That's really the first time I got a chance to watch them play all season."
Still, Drew is no casual fan. His rooting interests run DNA-deep. Every time he sees a play that involves his baby brother, 24-year-old Stephen, who just so happens to be the starting shortstop for the Snakes, he feels an extra measure of pride.
"So it was fun for me," J.D. said, "sitting around, catching his at-bats, watching him play defense. He got a lot of ground balls hit to him. You know, I tried to teach him as he was growing up how to hit and things like that."
"Things are going pretty well for him," Drew said.
So well, in fact, that no member of the D-backs was more important to the team's first-round sweep than the younger Drew. Stephen went a blistering 7-for-14 during the three-game series, including two home runs, a double and a triple.
J.D. and Stephen talked on the phone "two or three times" since the end of their two Division Series, so the elder Drew could offer congratulations.
"He had a good series out there," said J.D., who went 2-for-11 in Boston's first-round sweep of the Angels.
One subject of conversation that never came up: the tantalizing prospect of facing one another in the World Series, which would come true with a victorious LCS for both the Red Sox and D-backs.
"We've chatted," Stephen said, "but it's not about postseason stuff. It's about how [J.D.'s] family's doing and stuff like that. It's about how his kids are doing and his wife. Just chatting about the offseason -- we like to do a lot of hunting and fishing in the offseason. [We just] try to ease our mind from baseball."
Brothers facing off in the Fall Classic has happened three times, and two sets of brothers have played in the Series as teammates.
The first were the Johnston brothers in 1920: Doc, who played first for the Cleveland Indians, and Jimmy, a third baseman for the Brooklyn Robins. Cleveland won the Series, five games to two.
Bob Meusel of the Yankees and Irish Meusel of the New York Giants, both outfielders, played against each other in three straight World Series, from 1921-23. Irish hit a home run in each of those Series. The Giants won in 1921 and 1922; the Yankees' championship in 1923 was the first of their record 26 titles.
Dizzy and Paul Dean played with each other for the Cardinals in the 1934 World Series, won by St. Louis over Detroit in seven games. Felipe and Matty Alou were both outfielders for the 1962 San Francisco Giants, who lost to the Yankees in seven games.
In 1964 the Boyer brothers, the Cardinals' Ken and the Yankees' Clete, were in opposing dugouts for the World Series. Both third basemen, Ken hit a grand slam -- one of his two homers in the series -- in the Cards' 4-3 Game 4 victory, while Clete went deep off Bob Gibson in the ninth inning of Game 7, part of a comeback bid that came up short for New York. Their slugging marked the first time brothers both homered in the same World Series.
Could the Drews be second in line for such a feat?
J.D. can't help but recognize the possibility of a October showdown with his brother. The veteran Drew reached the NLCS in 2000 and '02 as a member of the St. Louis Cardinals. Both times, St. Louis went home early.
Now, the chance of advancing to the Fall Classic, against his own brother?
"Yeah, I've thought about it a little bit," J.D. said. "But, you know, we've still got a step ahead of us to get to that point, and so does he.
"But," he added, "I think it'd be a lot of fun for us and for our family. Probably a little bit of mixed emotions, you know, about which is going to win. ... It's something that, as it gets closer, we'll think more about it."
The magic number for a Drew Series, then, is eight. Four wins for Arizona and four wins for Boston.
"I think we're both equally excited," J.D. said. "I don't think anybody's more excited than the other, that's for sure."
"Maybe that dream will come true," Stephen said.
Alex McPhillips is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.