He has an older brother, Corey, who currently plays for Perth in the West Australian Football League (WAFL).

[2] Beginning his career at the Booragoon Junior Football Club, Yeo represented Western Australia at the 2011 AFL Under 18 Championships (where his teammates included Jaeger O'Meara and Stephen Coniglio), and also played 14 games at colts level for East Fremantle in the WAFL.

[5] In a bizarre incident in round 10, 2014, he collided with the shoulder of Collingwood defender Jarrod Witts, causing his two front teeth to snap off.

[10] Yeo had a breakout season in 2015, playing all but one of his team's 25 games (including the grand final loss to Hawthorn).

[11] Yeo kicked 18 goals for the season, including four in one game against Gold Coast (along with 29 possessions and nine marks).

He led the AFLCA voting at one point, and surged into contention for the Brownlow Medal, with the TAB slashing his odds from $201 to $34 by round seven.

However, in round 3 against Geelong, he was moved to the middle at half time to stop a Cats comeback - this proved dramatically successful, and he became a permanent fixture in West Coast's midfield.