John Mensah has completed his return to the English league with Sunderland on loan.The Ghana defender according to French side, Lyon penned a season-long deal worth 500,000 euros (£416,000).Lyon also announced that the 27-year-old's deal could become permanent if the he plays more than 25 games, at which point Sunderland would pay a further 5,500,000 euros (£4.58million)."Olympique Lyon can confirm the loan of Ghana international John Mensah to English club Sunderland for an amount of 500,000 euros with an option to purchase," a Lyon statement said."This option provides for the permanent transfer of John Mensah to Sunderland for an amount of 5.5million euros (a total of 6million euros) if the players plays in a minimum of 25 games in different competitions during the 2010/11 season or if the club decide to take up the option before April 30, 2011."Source: Ghanafa.org