Nightengale reported Sunday that the belief among MLB executives is that Snell will land with the Angels or Giants and that Montgomery will sign with Boston.
Montgomery put up a 3.20 ERA over 188 2/3 innings between the Cardinals and Rangers last year and helped Texas to the World Series. He previously spent six seasons with the Yankees before he was traded to St. Louis in 2022 for outfielder Harrison Bader.
Snell, 31, made 32 starts for the Padres last season and posted a 2.25 ERA while striking out 234 batters.