Poland midfielder Jakub Blaszczykowski will miss Borussia Dortmund\'s Champions League quarter-final, first leg at Malaga on Wednesday with a persistent groin injury. \"The decision has been made, I will not play. It\'s too risky. Now let\'s get behind the boys,\" he wrote on his Facebook page having flown to Spain with his team. Right-wing \'Kuba\' has been a key part of Dortmund\'s midfield this season and the 27-year-old scored in Borussia\'s 3-0 win over Shakhtar Donetsk in the last 16 tie. Dortmund coach Jurgen Klopp is already without injured centre-back Mats Hummels, while left-back Marcel Schmelzer is expected to play with a mask after breaking his nose in the Bundesliga last weekend. From: AFP