Chelsea have offered Deco a three-year contract work £92,000 a week after tax, according to reports.
The Evening Standard claims that the Blues are prepared to offer massive wages to stop the Portuguese midfielder joining his old boss Jose Mourinho at Inter Milan.
Reports earlier on Monday morning suggested that the deal will be concluded this week, with Deco becoming Phil Scolari's first signing with a £12m switch.
That move is likely to be followed by the exit of Frank Lampard to Inter Milan.
