Hull KR claim they are not aware of any approach for prop Willie Mason from French rugby union club Toulon.
The high-profile 30-year-old only made his delayed arrival at Craven Park last month, after a long battle over a visa.
And reports are already linking him with his next move - a switch of codes to join Jonny Wilkinson's Toulon.
But a club statement read: "We are unaware of any approach for Willie from French rugby union. He remains under contract and available for selection."
Mason, 30, who scored his first try for Justin Morgan's men against Wigan last weekend in his sixth appearance, has been named in the squad for the Good Friday derby against Hull FC (22 April, 1215 BST).
Rovers have also confirmed that the Australia international is still without his Tongan passport, which would ensure he could play without taking up an import berth.
Fellow Australian scrum-half Michael Dobson was de-registered with the Rugby Football League in March after injuring his ankle to allow Mason to play as an overseas player.
"In relation to the passport application," added the statement, "progress has been made over recent days with direct support from the Prime Minister of Tonga and a resolution is expected shortly.
"The circumstances surrounding the delay in finalising matters are unique and beyond the club's control.
"Whilst fully appreciating supporters concerns, it would be inappropriate and potentially prejudicial to a short-term resolution of matters to comment any further at this stage."