Nazr Mohammed probably won't be able to duplicate Ben Wallace's ability to defend, rebound and play with energy for the Pistons.

Mohammed, who essentially replaces Wallace in Detroit, can add more at the offensive end, and the center will cost about $9 million less next season.

The Pistons and Mohammed agreed to a five-year contract, with the final year being an option, for the mid-level exception last week. The team could not confirm the deal until Wednesday, when the NBA's moratorium on free agency ended, but a news conference with Mohammed is not expected until early next week.