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Ryan Roberts: Traded to Tampa Bay, "Tatman" Ryan Roberts was perhaps the biggest casualty of this year's trade block. In a combined four years with the Arizona D-Backs, Roberts had played in 372 games, recording a .254 batting average and .737 OPS with 34 home runs and 133 RBI.
Craig Breslow: Traded to Boston, the D-Backs had just acquired this lefty reliever from Oakland prior to the 2011 in a deal that also sent Trevor Cahill to the desert. In 40 appearances with Arizona, Breslow pitched 43.1 innings, recording a 2.70 ERA and two wins to zero losses. His ERA-plus this season in Arizona was 159, a dramatic increase from his ERA-plus of 105 last season in Oakland.
Barry Enright: A farm-grown righty, Barry Enright was traded to the Los Angeles Angels of Anaheim for cash on July 24 after pitching the 2010 and 2011 seasons with the big league D-Backs. During that time, Enright picked up a 4.87 ERA and 7-11 record, a WHIP of 1.398 and ERA-plus of 86.
Now that the goodbye theme is complete, it is time to say "hello" to the following new Diamondbacks players.