Complex sentence: Sola started his career as a model whilst at the University of Lagos and when he returned to the United Kingdom after completing his degree he moved into banking and worked as a management trainee with the Abbey National Bank.
Split into simpler sentences: Sola started his career as a model whilst at the University of Lagos and returned to the United Kingdom after completing his degree. He moved into the banking sector and worked as a management trainee with the Abbey National Bank.