From The Record:
Giambi became the first Yankee ever to have consecutive multiple homer games twice in the same season.
On July 20 (at Texas) and July 21 (at Los Angeles) Giambi hit two homers in each game. He connected twice Sunday against the Royals, and hit his 24th and 25th homers of the year Monday night.
I’m shocked. Ruth, Mantle, Gehrig, DiMaggio, Berra, Maris, Reggie, et al, never did this? Ever?
One would think that one of the greats, or a fluke like Cliff Johnson, Kevin Mass, Matt Nokes, Darryl Strawberry, or Oscar Gamble, would have pulled this trick.