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Anderson is set to leave Old Trafford. Getty

Manchester United playmaker Juan Mata has all but confirmed Brazilian midfielder Anderson is going to leave Old Trafford before the January transfer window closes today (2 February at 23:00 GMT) to return to his homeland.

Reports in Brazil last week already confirmed that SC Internacional have approached Louis van Gaal's side to secure his services while Anderson's former side Gremio was also reportedly monitoring the situation.

Anderson moved to Old Trafford in summer 2007 after then manager Sir Alex Ferguson agreed to pay around £20m to Porto to secure his services, as he was then considered one of the most promising stars to emerge from the prolific Brazilian academy.

However, as happened with Nani who arrived from Sporting Lisbon at the same time, Anderson has struggled to make the impact expected in the Premier League.

Having spent last season on loan at Fiorentina, the midfielder has only made two appearances in the first part of the season under van Gaal.

Although neither Manchester United or any Brazilian side have made it official yet, Mata has confirmed Anderson is going to leave the club by giving the Brazilian his farewells through his official weekly blog.

"Also, I want to wish good luck to my friend Anderson, who is back to football in his native Brazil. All the best, my friend!" Mata wrote.

Meanwhile, Mata expressed his delight about the Premier League victory over Leicester City on Saturday, 31 January, even though he started the game on the bench.

The Spaniard hopes to secure the qualification to the next round of the FA Cup during Tuesday's replay against Cambridge before their visit to West Ham.

"A very cold Sunday has been the end to a week that leaves a good win at home, but there is no time for celebrations as this very Tuesday we have the FA Cup replay against Cambridge. We want to make it to the next round and we are absolutely focused on that because, as I said before, the team is very excited about this competition," he wrote.

"A few days later, on Sunday, we will play at West Ham. There is no time for a break. At this stage of the season we need to be more consistent than ever in order to retain the third spot and to approach the teams in the top two."