The Diamondbacks announced theyve designated Jackson Jobe Jersey for a signment. The move opens a spot in the bullpen for southpaw , who has reported to the team. The transaction drops Arizonas 40-man roster tally to 39. Vieira has spent the past two months in the desert. The Snakes claimed him off waivers from the Orioles at the beginning of June. He made 11 appearances, allowing six runs (five earned) acro s 15 2/3 innings. Vieira struck out 14 and handed out nine free pa ses. Arizona is his third team of the season. He also had stints in Milwaukee and Baltimore and carries a 5.21 earned run average through 38 innings on the year. The Brazilian-born righty is one of the harder throws in the game, averaging north of 97 MPH on his fastball. That hasnt translated to huge whiff rates, though, and he has never harne sed his power stuff. Vieira has walked nearly 15% of opposing hitters this season and has a 13.1% walk percentage over parts of five big league campaigns. Arizona is likely to place Vieira on waivers in the next few days. The 31-year-old has exhausted his minor league options, meaning another team would need to keep him in the big league pen if they claim him. Vieira does not have the previous career outright nor the three years of service time nece sary to decline an outright a signment, so the Snakes could keep him in the organization if he goes unclaimed on waivers. Omar Vizquel Jersey