Maurice Blair has become the second player to commit his future to Hull KR following their relegation from Super League.
The 32-year-old former Penrith, Melbourne and Gold Coast centre, who won the club's player-of-the-year award for 2016, has followed hooker Shaun Lunt in negotiating a new contract with the Robins for their Championship campaign.
Blair, whose original deal was due to run out next year, has also agreed a 12-month extension which will keep him at the Lightstream Stadium until the end of 2018.
Hull KR's head of rugby Jamie Peacock said: "Bobby is a man of real loyalty and integrity and he was on board straight away when we opened discussions about next season.
"To retain our reigning player of the year is a real statement of intent ahead of 2017 and for Bobby to agree to a longer-term contract with the club than he initially had is tremendous commitment from him also."
