Manchester United will face competition from Bayern Munich for midfielder Ilkay Gundogan.The German midfielder is currently injured at current club Borussia Dortmund after injuring his back at the beginning of the season. However, that has not stopped speculation about his future with his contract due to expire in 2015.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });Dortmund will be keen to avoid losing the 23-year-old midfielder for free next year, especially after seeing star striker Robert Lewandowski sign for nothing with Bayern ahead of the summer window.That has led to speculation that United, who are desperately looking to add some midfield prowess in the summer, will move for the German. The player’s agent and father, Irfan, recently told Kicker that the player was open to a move abroad.However, United face competition from Bayern, according to German website ZDF.If Gundogan did join Bayern in the summer he would be the third player to leave Dortmund for Bavaria in little over a year, after Lewandowski and Mario Gotze who signed last summer.