Chelsea are expected to announce the signing of Tiago Mendes next week.
The Atletico Madrid midfielder comes off contract next week and El Mundo Deportivo says he will return to Chelsea in a Bosman deal.
Now 33, Tiago had a year with Chelsea under Jose Mourinho during the 2004/05 season.
The midfielder admitted after the Champions League final that he'd made a decision over his next move, though as yet there's still no confirmation about a return to Chelsea.
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