Louis van Gaal is ready to bring in German international defender Mats Hummels as he seeks to fill the void left by Nemanja Vidic and Rio Ferdinand. The 25-year-old has been the subject of intense speculation as the summer transfer window approaches. Hummels is expected to leave Borussia Dortmund in the summer with Juventus, Barcelona, as well as United vying for his signature. According to a report in Bild, Italian champions Juventus are considering making a move for the player as they look to strengthen their Champions League prospects next season. Juve have just sealed a third consecutive Serie A title but struggled in Europe this season. United, though, believe the appointment of Van Gaal will put them in pole position as they look to rebuild with a 200m spending spree set to be carried out.