Complex sentence: Suárez was 19 years old when he went to play for Groningen and initially he struggled because he did not know Dutch or English, and he played on the second team to adjust to the Dutch game.
Split into simpler sentences: Suárez was 19 years old when he went to play for Groningen. Initially he struggled because he did not know Dutch or English, and he played on the second team to adjust to the Dutch game.