Complex sentence: Like many inline skaters Haffey began rollerskating as a child and by the age of 11 switched to single row inline skates and upon moving to Atlanta was introduced to the Aggressive skating discipline (also known as "blading") through ice hockey before returning to California.
Split into simpler sentences: Like many inline skaters Haffey began rollerskating as a child and by the age of 11 switched to single row inline skates. Upon moving to Atlanta he was introduced to the Aggressive skating discipline (also known as "blading") through ice hockey before returning to California.