Artem Panchenko of Sports.ru (hat tip: Sean Corp of Detroit Bad Boys):
"BC Donetsk informed us that Kravtsov is still under the contract with a team for the next season. Pistons should expect some buyout issues"
Sometimes, NBA teams get off guard with these issues. Sometimes, NBA teams have already planned for these issues.
I have no idea which is the case here, but if I had to guess, Vyacheslav Kravtsov will be a Piston next season.