Sabres center Tyler Ennis out after having groin surgerySource: AP ‘It’s the latest setback for Ennis, who missed the last half of last season because of concussion-related issues.’ Related posts: Sabres C Connolly to have season-ending hip surgery Tyler Ennis says Sabres can ‘be a real threat’ Sabres’ Ennis sidelined after groin surgery Sabres’ Ennis has groin surgery Tyler Ennis recalled from Portland