Complex sentence: He won the Super Bowl Most Valuable Player Award in recognition of his contributions to the Seahawks' victory, becoming the first defensive player to win the award since Dexter Jackson in Super Bowl XXXVII.
Split into simpler sentences: He won the Super Bowl Most Valuable Player Award in recognition of his contributions to the Seahawks' victory. He was the first defensive player to win the award since Dexter Jackson in Super Bowl XXXVII.