Complex sentence: He was an undisputed starter on the FC Schalke 04 U- 19 team, and was the captain, a great merit considering that at that age group captaincy usually goes to a native-born player.
Split into simpler sentences: He was an undisputed starter on the FC Schalke 04 U- 19 team, and was the captain. He has a great merit considering that at that age group captaincy usually goes to a native-born player.