Walker moves after 131 games with Melbourne United (formerly the Tigers) in 2010-11. 

Adelaide coach Joey Wright says he will use Walker, who played with the Miners in the South East Australian Basketball League in 2013, in numerous positions from guard through to five.

 Walker averaged 7.5 points at 50 per cent, 5.1 rebounds and 1.0 assists coming off the bench for United last season.