Seattle Mariners 

Churchill: Mariners Take Shot at Utility Upgrade

As we’ve discussed here at Prospect Insider, on Baseball Things and Twitter, the Mariners could use an upgrade to Taylor Motter’s utility role. Tim Brown of Yahoo! Sports tweeted Sunday afternoon the Seattle Mariners had signed veteran Danny Espinosa to a major-league deal. This means he will be on the 25-man roster. This also means a roster move is coming and it has to be Motter, unless Jarrod Dyson’s foot injury necessitates a DL stint. Motter had a 2-3 weeks stretch in April-May where he was pretty good, hitting for…