The Mariners announced this afternoon that theyve designated right-hander for a signment. Boltons 40-man roster spot will go to right-hander , whose contract has been selected from the minors. Left-hander was optioned to Triple-A to make room for Hahns addition to the active roster. Bolton, 27 in June, was a sixth-round pick by the Pirates back in 2017 and made his big league debut with...