NSW winger Timana Tahu expressed his frustration at the uncertainty over his future amid speculation he could be the next Newcastle player to leave the NRL club.

Tahu is off contract at the end of the season and his manager has twice asked the Knights for permission to test his value on the open market.

However, the club has knocked back his requests, leaving Tahu to play a waiting game until the June 30 anti-tampering deadline expires.

The 23-year-old Test winger has been linked with Manly, which announced the signing of his Newcastle teammate Ben Kennedy on a two-year contract, starting next season.

"My manager has asked twice and the Knights said `no just wait'," Tahu said.

"I'd just like to see what offers I can get from other clubs, Sydney clubs.

"I really want to sort out my future really fast.

"I've got three kids and it's a nervous part of the year and a frustrating one too.

"I'd be happy to come down here (to Sydney) and play but I really want to stay in Newcastle.

"I've been there ever since I was 14, I played my local footy there and I came up through the ranks and stuff but it's a decision I'll have to make when the Knights give me an offer."

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