The Seattle Mariners placed center fielder Kyle Lewis on the 10-day injured list Wednesday due to a bone bruise in his right knee, sidelining the reigning American League Rookie of the Year for opening day. Seattle manager Scott Servais hinted last week that Lewis' injury was not responding as the training staff had hoped and was uncertain whether Lewis would be available for the opener Thursday against San Francisco. Servais said there was a chance Lewis could play but the team is exercising caution with one of its young stars.