The Spurs have three days to match the offer.
League sources told ESPN's Marc Stein, though, that the Spurs are already resigned to the knowledge that they will lose Marjanovic, knowing they can't match Detroit's offer sheet and keep the cap flexibility to complete their other planned moves this summer.
Pistons All-Star center Andre Drummond used Twitter to welcome the potential newest addition to his team.
Thank the lord we have you, tired of you dunking on me without jumping 😒........... Welcome to the family fella😊 pic.twitter.com/8npDDsCSdz— Andre Drummond (@AndreDrummondd) July 7, 2016
The Spurs did make a move to bolster the team's inside play, reaching agreement Thursday to sign free-agent center Dewayne Dedmon to a two-year contract worth $6 million with a player option in the second year of the deal, an NBA source confirmed to ESPN's Michael C. Wright. The Vertical first reported the news.
An NBA source said the Dedmon signing won't be official until "later in the process," as the sides are still working through some of the details of the deal.
Marjanovic, 27, from Serbia, appeared in 54 games in his rookie season. He averaged 5.5 points and 3.6 rebounds in 9.4 minutes per game.
A 7-footer, Dedmon came into the NBA with the Golden State Warriors, but has also played for the Philadelphia 76ers and the Orlando Magic. Dedmon averaged 4.4 points and 3.9 rebounds for the Magic last season, playing an average of 12.2 minutes.