Alex Rodriguez wears full Red Sox uniform on air after Yankees' ALDS loss

The bill came due for Alex Rodriguez on Friday night. 

On FS1's postgame show after Game 1 of the NLCS between the Milwaukee Brewers and Los Angeles Dodgers, Rodriguez – longtime star for the Yankees – donned a full Red Sox uniform while Boston legend David Ortiz dumped champagne on him. 

The scene between the analysts came about because of the Red Sox's 3-1 ALDS victory against the Yankees. 

While jarring to see A-Rod in the uniform of a hated rival, he did reveal a Yankees undershirt before proclaiming, "I'm a Yankee for life." 

Big Papi then sprayed champagne while both former stars donned goggles. 

It was, as Rodriguez said at the end of the video: "Unbelievable."