Diamondbacks' Justin Martinez: Heading to big leagues

Martinez was called up from Triple-A Reno on Tuesday.

Martinez will join the big-league club for the first time in his career after he was sent down ahead of the season in March. The right-hander has produced a 4.18 ERA and 1.71 WHIP with 38 strikeouts over 28 innings in 25 appearances with Reno this year.