Just newspaper talk?
I don't know, to be honest.
Obviously Ferguson is in the market for two strikers, but the rumoured offer of £15m for Cisse would be laughed at by Mike Ashley.
£20m ... could see "£" signs in Ashley's eyes.
However, Bayer Leverkusen chief executive Wolfgang Holzhauer has ruled out re-signing Berbatov this summer.
Berbatov has been linked with a return to his former club, with whom he spent five seasons before joining Tottenham in 2006, after making it clear he feels he no longer has a future at Old Trafford.
The Bulgarian frontman, who arrived at United from Spurs four years ago, has grown frustrated at the club after falling down Sir Alex Ferguson's pecking order, making just 12 Premier League appearances this season, seven of which came off the bench.
The 31-year-old is expected to move on this summer despite the club taking up an extra year's option on his contract in March which saw his deal extended until June 2013.
Let's hope Ashley snubs ANY offer ... fingers crossed!