The Baltimore Orioles have signed catcher Samuel Basallo to an eight-year extension, the team announced Friday, locking up one of the top prospects in baseball less than a week after his major league debut.

The Baltimore Orioles have agreed to a long-term contract extension with catcher/first baseman Samuel Basallo, according to Andy Kostka of the Baltimore Banner. Basallo's pact will cover eight years and guarantee him $67 million.

The Orioles agreed to terms on an eight-year, $67 million contract extension with star 21-year-old catcher Samuel Basallo.