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And from now on, the right back of the England national team Adam Johnson will represent the team with which he signed a four-year contract.
Although the transfer fee is not disclosed, it is believed that the "Black Cats" coach Martin O'Neill did not spare 10 million pounds for the 25-year-old footballer for the Premier League champions.
Johnson arrived from "Middlesbrough" to Roberto Mancini's team in 2010 for 7 million pounds, but he failed to establish himself in the starting lineup.
On Friday, "Sunderland" also added forward Steven Fletcher to the squad for a similar amount, who wore the "Wolverhampton" jersey in the last two seasons.
A four-year contract was also signed with the Scot.
