 Berra played youth hockey in his home town of Bülach, where he became a goaltender full-time at age 11.He played in the 2001 Quebec International Pee-Wee Hockey Tournament with a youth team from Zürich.Berra played his first professional game in 2003–04 in the National League B (NLB) for GCK Lions, and two years later played his first National League A (NLA) games with ZSC Lions.