Ja-Cheol Koo out for two weeks

In the second half of FCA's 2-0 win over Mainz 05, FCA midfielder Ja-Cheol Koo had to be substituted due to injury. The 29-year-old picked up an injury in his knee which will rule him out for a fortnight. The South Korean will miss the game at Hertha BSC on Saturday and the final home game of the season against FC Schalke 04. Due to the length of his injury, FCA have allowed Ja-Cheol Koo to travel to South Korea to prepare for the summer's World Cup in Russia with doctors in his homeland. "We've granted Ja-Cheol his wish," said Stefan Reuter. "Looking ahead to the World Cup, it's important for him to be treated in his homeland."