Catcher Samuel Basallo and the Baltimore Orioles are finalizing on an eight-year, $67 million contract extension, sources told ESPN, locking up one of the top prospects in baseball less than a week after his major league debut.

Orioles catcher Samuel Basallo has agreed to an eight-year, $67 million contract extension, a source told MLB.com's Mark Feinsand on Friday. The club has not confirmed the deal, which would be a pre-arbitration record for a catcher.

The Orioles signed Samuel Basallo to a record extension Friday. Where does that rank among their largest contracts in team history?