Complex sentence: Daði first represented Iceland national under-17 football team in 2014 and went on making 9 appearances for them through the end of 2015, keeping a clean sheet in 3 of his 6 starting games for the Icelandic under-17 team.
Split into simpler sentences: Daði first represented Iceland national under-17 football team in 2014 and went on making 9 appearances for them until end of 2015. Keeping a clean sheet in 3 of his 6 starting games for the Icelandic under-17 team.