Bayern Munich must be wary of Celtic's winning mentality ahead of Wednesday's Champions League playoff first leg in Glasgow, coach Vincent Kompany said on Tuesday.

Six-time champions Bayern are eight points clear in their domestic league and have won their past four outings in all competitions. Despite that recent run, Kompany is wary coming to "fortress" Celtic Park. "Both clubs stand very high in the tradition of the Champions League because of the achievements of the past," Kompany said.