RBIs have been an official MLB stat since 1920. And yet, in all that time, not a single player has ever won an RBI title in both leagues.

After 106 years, that looks like it's finally about to change.

is poised to become the first player ever to lead the National League in RBIs in one season and the American League in RBIs in another.

With less than a week to go in his first season with the Orioles, Alonso has 108 RBIs -- nine ahead of Yordan Alvarez (99) for the AL lead. Barring a truly monster week from Alvarez, Alonso will finish in first place.

And the Polar Bear previously led the NL (and all of MLB) with 131 RBIs for the Mets in 2022.

It seems impossible that no one has won both an AL and NL RBI title before, but it's true. Forty-one players have won multiple RBIs titles in their careers -- but not one of those players split them between different leagues.

Oh, and by the way: Alonso also has a chance to win the home run crown in both leagues. He reached the 40-homer mark on Monday, which puts him just one behind Junior Caminero for the American League lead.

Alonso won the National League -- and MLB -- home run crown as a rookie with the Mets in 2019, when he hit 53 homers.

Now, he wouldn't be the first player to lead both leagues in home runs, but it's still rare. The only players who've done it in the Modern Era (since 1900) are Shohei Ohtani (2023, AL; 2024, NL), Mark McGwire (1987 and '96, AL; 1998 and '99, NL), Fred McGriff (1989, AL; 1992, NL) and Sam Crawford (1901, NL; 1908, AL).