Croatia will have to do without one of their best players, Ivan Rakitic, during this international break with the Barcelona star suffering from discomfort in the Achilles tendon. Coach, Ante Cacic, announced the absence of the player on Monday with his club, whose communication policy is rather restrictive on issues relating to the first team, confirming the mishap with a brief medical report a day later.Rakitic himself doesn’t lie. He has been injured for some time, but that hasn’t stopped him being one of the most important players for Luis Enrique. Tendinitis in the Achilles tendon is a common ailment in the football world, that usually occurs due to wear and needs special care as a player ages. The ex-Sevilla captain, 28, should be guided by his feelings, manage his best effort but be allowed the respect to know when to stop occasionally. Enrique will rest him when he can meanwhile, doctors will soothe the pain with specific work based on platelet-rich plasma treatment. Rakitic aside, there are more players in the squad who have to deal with injuries that will almost certainly not get better, but need to be managed over time.Chronic problems that multiply in players who have played for about 10 years at the highest levels. For example, Lionel Messi and Sergio Busquets and their respective groin injuries. Neither has had (or plans to have) surgery to correct one of the most uncomfortable conditions there is, so in return, they undergo treatments to stabilise the area and avoid associated muscle injury.Gerard Pique and Andres Iniesta, also have their particular recurring ailments. The central defender suffers from hip issues that began towards the end of the 2013/14 season while the captain has to ensure doctors and physios pay special attention to his soleus, both players following specific treatments.