Dortmund to increase Karetsas playing time 'step by step'

Borussia Dortmund won't rush Konstantinos Karetsas and the midfielder is set to be gradually brought back into action following his minutes of play against Bayern Munich at the weekend. Karetsas, who has just recovered from a ligament injury, is not expected to be in the starting line-up for the Champions League clash against Real Betis on Wednesday and his playing…