Steve Bruce confirmed the deals for the duo last night.
“These boys, as well as the likes of Callum McManaman and Jon Routledge, form the future of the club, and it pleases me greatly that we have the healthiest squad of young players coming through at the moment since I’ve been here,” enthused Latics boss Steve Bruce.
“I’m happy to sign,” Cywka said. “My plan now is to try and move to the next level and try and make it into the first-team squad.”
Kupisz added: “I have been happy at Wigan and I feel my game has come on. But I want to play first-team football and my ambition is to do that here at Wigan.”