One day after Brian Lawrence's shoulder surgery, the Washington Nationals addressed their dire starting pitching situation Monday by agreeing to terms with 35-year-old right-hander Pedro Astacio for a one-year contract. However, the Nationals are taking no chances with Astacio. General manager Jim Bowden said the deal would not be completed -- and that he would not comment on it -- until Astacio undergoes an MRI on his right shoulder and right elbow Wednesday. Astacio is 124-119 with a 4.61 ERA in 375 games, including 326 starts, over 14 seasons. He went 6-10 with a 4.19 ERA last season for Texas and San Diego.