Heading into December and the winter meetings, baseball's offseason is starting to heat up. A few notable moves in the past week-plus were the Seattle Mariners trading James Paxton to the New York Yankees and 2015 American League MVP Josh Donaldson signing with the Atlanta Braves. There's also a Robinson Cano trade that's now almost official.

As such, we'll be rounding up all the best rumors, transactions, news and notes from the day.

Jays interested in lefty starters

The Toronto Blue Jays aren't expected to be big spenders this winter, as they continue to transition to their next core. But, at least for the time being, the Jays are reportedly monitoring some of the top left-handed starters on the market, in J.A. Happ and Dallas Keuchel, per Jon Heyman of Fancred Sports.  

Happ, of course, has done multiple tours in Toronto, equaling parts of six seasons in all. Last season, he was traded to the New York Yankees before the deadline for Brandon Drury and Billy McKinney. Keuchel has no similar tie to Toronto or the Blue Jays front office.

It's unclear if the Blue Jays are just doing prep work in case either Happ or Keuchel slips through the cracks, or if they're seriously pursuing the pair as a way of taking a step forward in 2019.

Realmuto in demand

Earlier today, we rounded up all the latest rumors surrounding Marlins catcher J.T. Realmuto. You can find those and a potential deal with the Yankees here

How Mariners could move Seager

Kyle Seager is coming off an awful season, he's north of 30 years old and he has three years and $57.5 million left on his deal. How could the Mariners trade him? Well, they could go the route they did with Robinson Cano and attach him to an attractive player, such as Mitch Haniger or Jean Segura. Here's the full story

Sanchez not going anywhere

Amid some whispers of catcher Gary Sanchez being a trade candidate, Yankees general manager Brian Cashman says that Sanchez isn't for sale in this clip: