The 23-year-old looks set to quit Ewood Park this summer after being left out of Rovers' pre-season camp in Austria.
N'Zonzi was targeted by a host of clubs in January, but Rovers stood firm as they looked to battle against relegation.
Steve Kean's side were unsuccessful in their attempts to beat the drop and N'Zonzi has made it clear he does not wish to play in the Championship.
The Frenchman is now being tracked by a host of Premier League clubs with Tottenham, Aston Villa, Stoke City and West Ham all linked.
But Sky Sports now understands that Sunderland are in pole position to capture N'Zonzi, although no club has yet agreed a fee with Rovers.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
Bayern Munich are kings of Germany and hope to be crowned kings of Europe at Wembley later this month!
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.
Chelsea won the Europa League on Wednesday. The Blues defeated Benfica 2-1 on injury time goal from Ivanovic.
The Juventus jersey for the 2013/14 was released earlier this week. Be the first to wear the colors of the Old Lady.