Inter Milan midfielder Thiago Motta believes Chelsea star Deco would be an important signing for the Serie A winners.
Deco has fallen out of favour at Stamford Bridge and Inter Milan coach Jose Mourinho is desperate to offer him a lifeline in Italy.
"When I played with him (Deco) at Barcelona, you had the best Ronaldinho while Lionel Messi was beginning to shine, but the reference point for everyone was Deco," said Motta in an interview with Gazzetta dello Sport.
"He is the most complete midfielder there is.
"He would be a fantastic reinforcement."
Deco joined Chelsea last summer from Barcelona for £8million but after a promising start, the Portuguese midfielder failed to live up to the hype and was rarely used in the second half of the campaign.
The 31-year-old is under contract with Chelsea until June 2011.