Red Sox Starting to Gain Leverage to Trade for Three-Time All-Star [Video]

The script might be starting to flip for the Boston Red Sox.

Triston Casas is a player the Seattle Mariners want to get in their lineup, but they have balked at the Red Sox’s asking price. With Saturday’s flurry of moves, do the Mariners have to consider swallowing their pride and coughing up their ace?

It’s no secret the Red Sox need help with their rotation, and it’s no secret Luis Castillo is one of their targets. FanSided baseball writer Cody Williams believes it’s time for the Mariners to lower their demands.

“It’s getting at least close to the point of desperation for the Mariners in their search for more offensive firepower,” wrote Williams. “That could work to the Red Sox’ benefit if Craig Breslow is …