The Red Sox optioned Samaniego to Triple-A Worcester on Sunday.
After he worked in relief the previous two days and with the Red Sox needing to clear room for Danny Coulombe (neck) to return from the injured list, Samaniego became a roster casualty. Samaniego has posted a 1.04 ERA, 1.15 WHIP and 13:7 K:BB in 17.1 innings this season and shouldn't have to wait long for his next call-up to the big leagues.