The Nationals, according to multiple people with knowledge of the situation, sent slugger Michael Morse to the Seattle Mariners in a three-way trade that netted them right-hander A.J. Cole, the pitching prospect who last winter served as the centerpiece of the trade that brought Gio Gonzalez from the Oakland A’s to the Nationals. The Mariners sent catcher John Jaso to the Oakland to complete the deal.
#Athletics acquire John Jaso from #Mariners in 3-team deal. A.J. Cole,Blake Treinen and a PTBNL sent to #Nationals. George Kottaras DFA.— Oakland Athletics (@Athletics) January 17, 2013