Ryan Helsley is one of the most popular trade targets with no less than a half-dozen teams interested to varying degrees. Among the suitors, per sources, are the Yankees, Mets, Dodgers, Phillies, Rangers and Blue Jays.

To set the stage for the sprint to the deadline, here's a primer based on what I'm hearing from front office executives across the league.

The Toronto Blue Jays are suddenly one of the favorites to win a pennant. What does that mean for their trade deadline pursuits? It took less than a year for the Blue Jays to go from trade deadline sellers to the No.

With Blake Snell set to return to the starting rotation, the Dodgers might consider parting ways with Dustin May ahead of the MLB trade deadline.