Worcester Warriors prop Ofa Fainga'anuku is looking to use his club's promotion push to make the Tonga's World Cup squad.
Tongan international Fainga'anuku swapped one group of Warriors, Glasgow, for another in March 2013.
"To be in the picture was a step forward and hopefully now I can achieve my aim of getting into that World Cup squad," Fainga'anuku told the BBC.
"That means putting my best foot forward for Warriors."
The 31-year-old is one of 17 new faces at Sixways following their relegation from the Premiership, along with Tom Biggs, Andries Pretorius and Ryan Mills.
"We want to get straight back to the Premiership where this club belongs," added Fainga'anuku.
"This pre-season is really tough. It's probably the hardest one I've been through but I'm benefiting and I'm probably the fittest I've ever been.
"There have been a lot of good changes from last year. Now it's up to us players.
"We need to use all the facilities and resources around us to ensure we play well individually and to hopefully gel as a team."