John Obi Mikel, 29, has started pre-season preparations at Premier League giants Chelsea.<br /><br />The Nigeria international reported for training on Monday morning along with a couple of experienced players in the shape of John Terry, Willian, Ivanovic and Diego Costa.<br /><br />Mikel and his teammates were put through their paces to ascertain their fitness, having spent close to two months on vacation.<br /><br />For the next four days, the players will report at Cobham before their trip to Austria on Friday evening for a one-week training camp.<br /><br />The Blues will face Rapid Vienna (Saturday) and RZ Pellets (Wednesday) while in Austria.<br /><br />Igho Kingsley <br /><br />Photo Credit : chelseafc.com<br /><br /><br />