Which former Arsenal player, known for his tenacity and versatility, was nicknamed 'The Little Mozart' due to his exceptional footballing intelligence, but never won a major trophy with the club?

1. He represented his national team at multiple World Cups and European Championships.
2. He predominantly played as a midfielder but was also deployed as a full-back.
3. His time at Arsenal spanned from the late 2000s to the early 2010s.
4. He was known for his short stature and technical ability.