Newcastle Knights pair Robbie O'Davis and Timana Tahu are set for their return this Sunday against St George Illawarra Dragons at OKI Jubilee Stadium.

It's a well timed return considering Johns is currently out, the Knights have 3 players in doubt including Gidley, Hughes and Kennedy.

It's a must win for both sides here but more for the Dragons if they want to have any chance to play in the finals come September.