Welcome to part one of a two-part series in which we share with you FanGraphs' thoughts on Matt Cain's brand-new contract extension with the San Francisco Giants. The former free-agent-to-be signed for five years and a lot of money, and it stands to reason that people have opinions. Here's an opinion, from their and our Wendy Thurm:

This is a good deal for both Cain and the Giants. Cain has financial security, a pitching coach with whom he works incredibly well, and a fan base in San Francisco that adores him. The Giants have locked-up one of the best right-handed starters in the game for the next five, maybe six, seasons. Sure, $21 million AAV is a lot of money. But the Giants were looking at a lot of payroll flexibility after the 2014 season and a farm system light on starting pitching prospects.

Good for Cain, and good for the Giants! Wendy's opinion is a positive one. Now stay tuned for part two!