The Texas Rangers have traded Jason Frasor to the Kansas City Royals for a minor-league pitcher.Spencer Patton, who has spent the entire season at Triple A Omaha, will be assigned to Triple A Round Round Rock. He is scheduled to participate in Wednesday’s Triple A All-Star Game in Durham, N.C., for the Pacific Coast League All-Stars.Patton, 26, is 4-3 with a 4.08 ERA and 14 saves in 15 save opportunities this seasson. He was Kansas City’s 24th round selection in the 2011 First Year Player Draft.Frasor is 1-1 with a 3.34 ERA in 38 appearances with Texas in 2014, his second year with the club. He signed with the Rangers as a free agent before the 2013 season and was 4-3, with a 2.57 ERA in 61 games. Patton is not on the Rangers’ 40-man roster. The club will make a roster move to replace Frasor on the 25-man roster before Friday’s game in Toronto.