There is strong speculation that Gerrit Cole could head west in free agency this offseason.

Cole is from Southern California and will be the most coveted free agent on the market.

"I expect his contract to set records [for a pitcher]," Ken Rosenthal said on FOX's World Series Game 5 telecast. "Records in annual average value, which is currently held by Justin Verlander at $33 million, and record in total value, which is David Price at $217 million. He's going to shoot past both of those. He's going to be a free agent entering his age-29 season, and that's a really sweet spot for Major League teams."

In a column on Monday, Rosenthal stated that Cole and agent Scott Boras could seek the first-ever $300 million deal for a pitcher.