Jose Valverde (back) will throw prior to Sunday's game to determine whether he'll be available. "Valverde is day-to-day, but he is going to throw (Sunday) and see how he feels. If he feels great, he may be available (Sunday)," Tigers manager Jim Leyland said. "I doubt that. I think it'll be Tuesday in Cleveland. He's a gamer; he's a tough guy. If he throws and tells me he's ready, he may go (Sunday)." Valverde hasn't pitched since leaving Tuesday's game with a lower back strain. The Tigers haven't had any save chances while he's been out.