Sgt. Mark Clark of the Scottsdale, Ariz., police said the Dolphins guard took responsibility when police contacted him Thursday. The Arizona Republic reported that Incognito smashed the black Ferrari with a baseball bat.
Clark said police first went to Incognito's home Wednesday after being contacted by TMZ Sports and being given a photo of a Ferrari with several dents in its hood.
Clark said further details are unavailable because no report was filed because no crime was reported. He said Scottsdale police are done with the matter.
An investigation conducted for the NFL determined that Incognito and two other offensive linemen engaged in persistent harassment of tackle Jonathan Martin, another offensive lineman and an assistant trainer.
Leach and McClain were part of the Super Bowl champions two seasons ago.
The deal announced Thursday includes $4 million of guaranteed money.
Baker has spent two seasons with the Redskins, playing in 29 games. He started the final three games last season after Stephen Bowen was sidelined by a knee injury.