Tauber also said that he has not yet opened talks with any other NRL club.
"There has been speculation about Cronulla, I have never spoken to (Sharks officials) Steve Noyce or Darren Mooney or any of them," Tauber said.
"We have not spoken to anybody. This all only took place yesterday morning and we weren't anticipating or planning anything."
Cronulla, St George Illawarra, Parramatta, Melbourne, Brisbane and the Warriors are all being linked to him.
News Corp reports that Marshall himself has reached out to ex-Tigers players who are now playing at Cronulla, including Beau Ryan.
His departure from the Blues comes less than a year after Marshall pledged he would never play against the Tigers.
"I will honour my words about not playing for another (NRL) club," he said in July last year, announcing his intention to leave the code.
"There is no other NRL club for me to play for. The Tigers are my home and will always be my home.
"I have seen guys like Mark O'Neill leave, go to England and then come back to the club.
"I am hoping to do the same in some capacity after I retire."
-AAP