On the opening day reigning champions Ports Authority take on the 2008 runners-up Kallon FC in a league game that will also double as a first ever Super Cup match.
Child, who is in his third season as a Super League referee, awarded 27 penalties during the game, as well as dismissing Hull FC player Sean Long and sin-binning Lee Radford.
Senior, 32, has played in each of the 14 Super League seasons and will make his 300th appearance for the Rhinos if he plays against Hull FC on Tuesday.