Players using other players bats?

[molina4fan]

Seems like a few guys have been using Yadi's bats lately. I was just wondering if those bats were to hit the market do these players write their number on them or are they just left as Yadi's?

[Birdbats]

Typically, the second player will add his number to the knob or barrel end in some way. I know Jay has a knob decal on his Yadi bat with Jay's #19. Of course, there's always a chance the second player might do nothing.