sentences:  For 2006–07 season he was promoted to the first squad as third choice behind Georgi Petkov and Nikolay Mihaylov.He made his debut in a 3–0 home loss against Werder Bremen in the group stage of the Champions League on 31 October 2006, replacing Nikolay Mihaylov at half-time.On 4 November, he started for first time, keeping a clean sheet in a 3–0 home league win over Beroe Stara Zagora.