The struggling Arizona Diamondbacks called up outfielder Gerardo Parra from Double-A Mobile and placed him in the starting lineup for Wednesday night's game against the Cincinnati Reds.
The 21-year-old Venezuelan hit .361 with three homers and 12 RBIs in 29 games for Mobile. He was one of two players making their major league debut Wednesday after coming up from the Double-A club. Right-hander Bryan Augenstein, 22, got his first big league start against the Reds.
To make room on the roster, Arizona designated shortstop Josh Wilson for assignment and optioned reliever Clay Zavada to Mobile. Zavada was with the Diamondbacks for one day and did not appear in Tuesday night's game.
Parra was in center field and second in the lineup for the Diamondbacks, who entered 1-4 since manager Bob Melvin was fired and replaced by A.J. Hinch.
"A very exciting player, not just any other outfielder," Hinch said of Parra. "He's been highly thought of in our organization for a few years. He's been through the WBC (World Baseball Classic), he's been through terrific winter ball, played well in the minor leagues, he's been in big league camp a couple of years in a row."
Hinch said Parra can play all three outfield positions.
"He's going to get plenty of at-bats," Parra said. "We've got four good guys for three spots."
On Tuesday, the Diamondbacks placed Conor Jackson on the 15-day disabled list with an unidentified illness that has plagued him for some time. That left Chris Young, Eric Byrnes and Justin Upton as the only outfielders on the roster before the addition of Parra.
The moves are the latest in a flurry of transactions by a team batting .235 overall and .191 with runners in scoring position — worst in the majors in both categories.
"We've obviously added a lot of guys to the DL, so we're forced to make moves," said Hinch, who is familiar with the young players from his previous job as director of player development. "But let me tell you, until we kind of catch our rhythm as a team and get some more positive results, I think we're willing to change things and see if we can find the right ingredients."
Wilson batted .231 in 11 games, mostly as a replacement for injured Stephen Drew, who was activated on Tuesday.