Trio of Mariners fans rock Abbott & Costello jerseys at Safeco Field

Some parts of baseball's timeless tradition never get old: the home run trot, the classic doubleheader, ice cream in a mini batting helmet ...

The list goes on, but not without including Abbott & Costello.

Few American comedy routines are held in higher esteem than the widely known, oft-imitated "Who's on First?" bit.

Some material just holds up better than others. No one knows this better than the trio of Mariners fans seen above who rocked custom Abbott & Costello-themed jerseys at Safeco Field on Thursday for King Felix's big win over the Angels.