The oft-confused pair - one a Bulldogs-bound hooker, the other a Sharks winger - have faced off in the NRL but are yet to play together.
"This is the first time actually meeting [the other Sione] and talking to him. I've seen him around but not really chatted about our names," Cronulla's Katoa told NRL.com on Wednesday.
Factor in that Tui Katoa - the Canterbury-contracted younger brother of the Sharks flyer - has also been chosen in Tonga's squad and you've got a commentator's nightmare.
