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Lee's doubles are probably a result of a lot of wall bangers. Japanese outfielders are good at getting caroms, but it's still a big part of the game.
This is especially so because Lee played in the Pacific League.
Softbank, Orix, Nippon Ham and Chiba Lotte all have high fences when compared to US counterparts.
How this translates to the Majors, I dunno.
Maybe discount the doubles, or perhaps slide them over to HRs?