Inter have loaned out Portugal winger Ricardo Quaresma to Chelsea until the end of the season.
Inter paid Porto an initial €18.6m for Quaresma in August, with €6m-rated midfielder Pele going the other way as part of the deal.
The right-sided winger, however, has struggled to find his feet under compatriot Jose Mourinho at San Siro and has started just seven matches in Serie A this term.
"I think a spell abroad can be very good for him," Inter President Massimo Moratti said.
Quaresma, who started his career at Sporting Lisbon, spent a season with Barcelona in 2003/04 before a four-year stint with Porto.
The 25-year-old, who has a five-year contract with Inter, teams up again with Chelsea manager Luiz Felipe Scolari who he played under while the Brazilian was coach of Portugal prior to joining Chelsea in the summer.
In other transfer news Inter have announced that Olivier Dacourt has signed on loan for Premier League outfit Fulham, a deal that will take him to the end of his Nerrazurri contract following three seasons in Milan.
Dacourt, who signed for Roma after previous spells in England with Everton and Leeds United, has featured just once as a substitute in Serie A this season.