Father-son prospect Bailey Rice says he can't make up his mind about his AFL future.

His father, Carlton's 1995 premiership player Dean Rice, played more than 100 games with both St Kilda and the Blues, so the 18-year-old has the luxury of nominating both clubs for next month's NAB AFL Draft.

"I'm pretty lucky to have two clubs (to choose from), and I'd be happy with either of them, but unfortunately I have to choose one," Rice said.

"It's a tough choice, and I keep going from one to the other. But I'll sit down with Dad and my manager and make a decision in the next couple of weeks."