(Arlington, TX)  --  Mariners left-hander Wade LeBlanc will start tonight in Arlington in the series opener against the Texas Rangers.  The Rangers will counter with Martin Perez.  This 10-day, 10-game trip also includes four games in Houston and three in Oakland, the two teams ahead of the M's in the AL West.  Seattle trails the Athletics by two-and-a-half games for the final AL wild-card berth.