The Blue Jays are trying to build a solid pitching staff to go along with all of their position-player talent. So, the arrival of Walker makes sense, even though the Jays are 4.5 games out of first place in the AL East this season. Walker could make an impact right away, but expect Toronto to keep him around for the long haul.

Several teams wanted to add Walker to their starting rotation, so the Mariners will likely receive a top prospect in return for Walker's services. Seattle is well behind the Oakland Athletics in the 2020 AL West standings, so they did well with this move to trade a valued pitcher for a future asset.

Walker's numbers should remain solid in Toronto (and he might get more run support with the Blue Jays), So, his fantasy stock figures to be steady even after this trade.