Geelong is keeping a close eye on young midfielder Sam Simpson, who has emerged as a possible father-son pick for the Cats at this year's NAB AFL Draft.

The 18-year-old is the son of former Geelong midfielder Sean Simpson, who played 114 games for the Cats between 1991-98 after crossing from St Kilda, where he played seven matches.

Simpson only came onto the Geelong Falcons' radar at the end of last year, and has played just seven games at TAC Cup level as he has battled some injuries.

But he put in one of his best games of the season last weekend against the Dandenong Stingrays, gathering 23 disposals for the Falcons and showing his classy ball use.