Breed: English Springer Spaniel-Mastiff Mix Gender: male Nickname: 190554 Sawyer Age: 49 Years 3 Months Posted Breed: Mastiff / Springer Spaniel / Mixed (short coat). Sawyer is seven years old and a big boy - around 85-90 lbs. He is the most awesome dog - super loving and chilled, wants nothing more than to be a big lush in your lap. Sadly he is heartworm positive so we are going to have to tre...