Tom Gores has agreed to a tentative deal to purchase the Pistons from owner Karen Davidson, according to a source.

The agreement, which must be approved by the NBA, could be announced as early as Friday.

After several days of intense bargaining, the agreement was reached late Thursday.

The total value of the deal, which includes the team, the Palace of Auburn Hills and DTE Energy Music Theatre, is expected to be announced at $420 million.

The current ownership is expected to retain 10% ownership for several years.