Complex sentence: In 1995, he joined FC Barcelona's youth system at La Masia, switching positions again, to play as a defensive midfielder; two years later, he started playing for the club's B-team, occupying the position of right back.
Split into simpler sentences: In 1995, he joined Barcelona's youth system at La Masia, switching positions again, to play as a defensive midfielder. Two years later, he started playing for the club's B-team, occupying the position of right back.