I've played for Liverpool, but my career has included stints at multiple other Premier League clubs, some with very strong connections to our Merseyside rivals, and I also had a notable period in the Serie A. I'm known for my versatility across several midfield roles, and my international career has seen considerable success with my nation. Who am I?

1. I was a key player in a mid-2010s Premier League winning side.
2. I've been managed by both Klopp and Ancelotti.
3. My playing style often involved a mix of robust tackles and creative passes.
4. I hold a very significant amount of international caps for my country.