"Diamondbacks Make Roster Moves, Promote Bobby Kennedy and Designate Kristian Robinson"

The Arizona Diamondbacks have optioned third baseman Emmanuel Rivera to Triple-A Reno following a slump in August, while selecting infielder Bobby Kennedy from Triple-A Reno to replace him. Rivera has been struggling at the plate, going 0-19 in August and seeing his batting average drop 25 points since July. Kennedy, on the other hand, has been performing well in Triple-A Reno, slashing .318/.447/.480 this season. The Diamondbacks, who have lost nine games in a row, hope Kennedy can provide a boost as they face the San Diego Padres.