The Red Sox were willing to part with Triston Casas for one of the Mariners' standout pitchers on one condition.

The Triston Casas trade rumors this winter just won't end, will they? After signing Walker Buehler earlier this week, it seemed as though Casas would be safe f

With the Red Sox casting a wide net to improve their roster this offseason, Triston Casas’ name has been a fixture in trade ... in the middle of the lineup for a really long time here in Boston,” Breslow said. “Obviously, plus power, plus strike ...