Complex sentence: During his club career he played for Wacker Wien and earned 16 caps for the Austria national football team, and participated in the 1954 FIFA World Cup and the 1958 FIFA World Cup.
Split into simpler sentences: During his club career he played for Wacker Wien. Kollmann earned 16 caps for the Austria national football team, and participated in the 1954 FIFA World Cup and the 1958 FIFA World Cup.