The latest big name moves, deals and offers taking place across world football during the January transfer window.
Transfer talk: January 23 - Milan want Drogba, M'Vila moves to Russia
"I am no mercenary," Cesar told Portuguese radio station Renascenca.
"It is a very good contract. It will provide me and my family with great financial stability."
Cesar, 24, signed for Benfica from Brazil's Corinthians in 2011, winning his first cap for Brazil in the months after the move.
"There are two sides to the coin," he said. "It will be a much more tranquil life financially, but sports wise it will distance me from my objectives which are the national team, playing in Europe and the Champions League and be among the best clubs in the world."
Rubin Kazan have completed the signing of in-demand midfielder Yann M'Vila from Ligue 1 club Rennes.
The France midfielder had been linked with a host of clubs during this transfer window, and Rubin were thought to be in competition with QPR and at least one other Premier League side for his signature.
But Rennes have now confirmed the 22-year-old is heading for Russia after completing a medical.
"Stade Rennais, FC Rubin Kazan and Yann M'Vila have reached an agreement for the permanent transfer of the French international," said a statement on the Rennes website.
"After the traditional medical visit, the Rennes midfielder joined the Russian club officially on Wednesday evening."
Massimiliano Allegri, the AC Milan head coach, admits he would be keen to bring Didier Drogba to the San Siro after being linked with a move for the Ivory Coast forward.
"Champions of his calibre are very welcome," Allegri told Sky Italia.
"(Vice-president Adriano) Galliani will know if the deal is feasible.
"I'm calm, the club is just thinking about what could help us out and what we could do about it.
"A player like Drogba would certainly improve both the technical level and self-esteem of the team. We'll see what the club are able to do, otherwise we'll carry on as we are, looking to have a good second half of the season because that is our objective."
Vasilis Torosidis, the Greek international right back, has joined Roma from Olympiakos for an undisclosed fee.
The 27-year-old, who has 54 caps for Greece, has signed a five year contract with the Serie A side, according to Italian press reports.
The Spaniard, set to make his international debut on the back of his form for Swansea this season, has signed an extension to his contract to keep him at the Liberty Stadium.
The 26-year-old, who joined Swansea from Rayo Vallecano last summer, has been the subject of much transfer speculation this season after scoring 16 goals in just 28 appearances for the Welsh side.
"It was an easy decision for me," declared Michu. "I am living a dream here at Swansea.
"I'm probably enjoying my football more than ever. I think the club are happy with me because they have given me a new contract. I am certainly happy with the club."
Uruguay defender Diego Lugano has joined Spanish club Malaga on loan from Paris Saint Germain until the end of the season.
Lugano, who has made 76 international appearances, joined PSG from Turkish club Fenerbahce in August 2011 but started just nine league games in his first season and has not played at all for the club this term.
PSG coach Carlo Ancelotti said on PSG's website that Lugano was "very professional and very dedicated" during his time at the club and "he will surely get more playing time" in Spain.
Scottish Premier League side St Mirren have signed Esmael Goncalves on loan from Rio Ave until the end of the season.
The 21-year-old, who was on loan with Nice last season, could feature in Danny Lennon's squad to face Celtic in Sunday's Scottish League Cup semi-final against Celtic.
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