MONTREAL The Expos today outrighted left-handed pitcher Jeriome Robertson to Triple-A Edmonton. Assistant General Manager/Director of Baseball Administration Tony Siegle made the announcement. Robertson never pitched for the Expos after being acquired from Cleveland on August 3 in exchange for left-handed pitcher Pierre-Luc Marceau. The 27-year-old Robertson went 1-3 with a 5.73 ERA in seven starts for Edmonton after being acquired. In eight games out of the bullpen with Cleveland earlier this season, he went 1-1 with a 12.21 ERA.