Overview

• Katterbach returned to senior training on Monday as HSV opened preparations for Saturday's league trip to Leipzig.
• HSV had moved the 24-year-old to the U21 about three weeks ago over misconduct tied to poor mood and body language.
• Polzin described the step as a short thinking pause and said player and staff are now aligned on team-first standards.
• Katterbach must compete for a matchday place, with established options at left back such as Miro Muheim featuring regularly.
• The club continues to manage his workload following a cruciate ligament tear earlier this year.