SEATTLE (AP) — The Seattle Mariners signed right-handed pitcher Brian Shaw and placed catcher Tom Murphy on the 10-day injured list in setting their 30-man roster for the start of the regular season.  Shaw was released by the Colorado Rockies earlier this week. The veteran made 70 appearances with a 5.38 ERA last season with Colorado. Murphy was diagnosed with a broken bone in his left foot, leaving the Mariners with only Austin Nola and Joe Hudson as their catchers going into the regular season.