4/18 Arrieta making progress
Jake Arrieta may be one start away from getting back to the big leagues. The Cubs right-hander will make at least one more rehab start with Triple-A Iowa early next week, and could then be ready to start for the big league team. Arrieta had tightness in his right shoulder when Spring Training began, and did not pitch in any Cactus League games. He has made three rehab starts for Double-A Tennessee, and given up one earned run on six hits and four walks over 12 1/3 innings. In his last outing on Wednesday, he went 5 2/3 innings. Arrieta was in Chicago on Friday to throw a side session for Cubs pitching coach Chris Bosio, so he could evaluate the pitcher’s progress.