St George Illawarra prop Mitchell Allgood has signed a one-year deal with the Dragons ahead of the 2018 season.

Allgood returns to the NRL after three seasons spent in the English Super League having played for Hull KR and Wakefield Trinity.

Prior to his overseas departure, the 28-year-old played 70 NRL games for the Parramatta Eels and featured for City Origin back in 2012.