Spurs fan favorite Boban Marjanovic signs with Pistons

The Detroit Pistons have signed San Antonio big man Boban Marjanovic to a $21 million, three-year offer sheet.

Misko Raznatovic, Marjanovic's agent, announced the deal Thursday. The Spurs can match the offer within three days, but their salary cap situation makes that seem unlikely.

The 7-foot-3 Marjanovic, who turns 28 in August, averaged 5.5 points per game last season for the Spurs. That was his first NBA season. Marjanovic is a three-time MVP of the Serbian Super League.

The Pistons have also reached agreements with free agents Ish Smith and Jon Leuer. They've called a news conference Friday to introduce those players.