Of Prospects and Rosters, Part VI: The 26-Man Roster (pitching) And why minor league options are so important for bullpen arms. Share this story Here are the 13 pitchers currently on Arizona’s 26-man roster. Starters Madison Bumgarner Would the real Mason Saunders please stand up? There isn’t much to be said about Arizona’s veteran lefty. When he is going right, he has been very good, with his best start in an Arizona uniform coming back on April 25th of this year when he threw a Manfred No-No. However, when Bumgarner is not going right, the Snakes are sending a dumpster fire to the mound. There have been numerous injury concerns since he signed and there have also been reports of issues between Bumgarner and the coaching staff. The Diamondbacks fan in me would like to write off all the rough outings he has had to those various issues, but there have simply been entirely too many of them to ignore. The team is still going to owe him $60 million over the next three seasons, so he isn’t going anywhere, regardless of his performance the rest of this season.