Championship - Blackburn sign Best from Newcastle
Rovers have agreed a fee of more than £3million for the 25-year-old, who has penned a four-year contract at Ewood Park.
The Championship club confirmed the switch in a statement on their website, which read: "Blackburn Rovers have this evening completed the signing of Leon Best from Newcastle United."
It added: "The 25-year-old striker makes the move from the North East to the North West for a fee of more than £3m, signing a four-year deal."
The Republic of Ireland international, who has been handed the number nine shirt at his new club, becomes Rovers second signing of the summer as Blackburn look for an immediate return to the Premier League following their relegation last season.
In 2007 he joined Coventry, where he spent three years before being signed by Newcastle for £1.2million in February 2010.