Five things to know about the Seattle Mariners, who open a three-game series against the Texas Rangers on Friday at Globe Life Park:Seattle has lost four of its last five games, scoring a total of seven runs in that span. The Mariners went 1-3 against reigning World Series champion Houston in that span and are 6-17 against Houston since opening day 2017. CF Dee Gordon, who has hit in 15 of 17 games, will be looking to run.