The three of them were originally altogether at Sabaody, Sakazuki never intending to split up with the trio, aka Kuzan and Borsalino. A better way to say it, was that the two themselves got lost, leaving Sakazuki stranded. However he didn't acknowledge he was on Grove 1, the Slave Auction Island.

He walked around just a bit longer, before noticing that the two had practically vanished by now, as he facepalms, cursing to himself.

" These damn idiots.. where did they run off to!?- "