VfB Stuttgart's 40-year-old goalkeeper Jens Lehmann is putting thoughts of his future to one side as he prepares to face FC Barcelona in the UEFA Champions League first knockout round decider on Wednesday. "This could be my last international," said Lehmann, whose team drew the first leg 1-1. "I haven't thought about my retirement and I want to focus on this match. I will make a decision later in the season; there's no deadline though."