World Superbike title challenger Eugene Laverty says he is pushing hard to win a MotoGP contract for next season.
The 27-year-old, from Northern Ireland, won both races in in Turkey on Sunday to move into third place in the battle for the Superbike championship.
Laverty, though, revealed his future was uncertain and that he was keen to thrash out a deal for 2014.
"I want to be in MotoGP. It is where I feel my future lies. But I am not sure what Aprilia's plans are," he said.
"I am in talks with them about a move into MotoGP - that is where I want to be going.
"However, things have been stalling in recent weeks, and I have been getting a bit impatient with that because I feel I have been doing the business for them.
"I want to have a contract in front of me so I can focus on winning the Superbike title.
"It is frustrating because the guys I am beating have already put pen to paper.
"I have not got a deal for next year but, after the two wins in Istanbul, I am definitely in a better position.
"I would like to be in MotoGP with Aprilia because I have been with them for two years now and I know the bike and the electronics well, which is important."
With three rounds of the 2013 World Superbikes campaign remaining, Toomebridge man Laverty is third on 297 points, 26 behind the leader, England's Tom Sykes, with France's Sylvain Guintoli in second.
The next round is at Laguna Seca in the United States on 29 September, with the last two rounds at Magny-Cours and Jerez in October.