Which Arsenal player, known for their midfield tenacity, was a key figure in the 'Invincibles' squad, but also had a career marred by injuries?

1. He was nicknamed 'The Octopus' for his ability to cover ground.
2. He played for his national team in multiple World Cups.
3. His career at Arsenal spanned over a decade.
4. He was known for his strong tackling and aerial presence.