Some great options this week for those looking to tweak their roster. A pair of huge prospects, Matt Harvey and Starling Marte, got the call and are giving every indication that they may be here to stay. The closer of the week is John Axford in the the Milwaukee revolving door bullpen. A catcher is worthy of a look due to injury and is one of a trio of Blue Jays on our radar. Finally we have a very young target (Luis Cruz) and a very old (Eric Chavez) that are already helping fantasy teams nationwide.