As the Arizona Diamondbacks prepare to face the Pittsburgh Pirates this weekend, the club made a pair of key roster moves that further signal their shift toward selling at the upcoming trade deadline. Right-hander Trevor Richards has been designated for assignment, while left-hander Brandyn Garcia has been recalled from Triple-A Reno.

The Pirates wore a throwback uniform combination to honor former outfielder Dave Parker, who will be inducted into the Hall of Fame this weekend. Their performance at the plate didn't exactly bring back visions of "The Cobra" as baseball's lowest scoring team saw its three-game winning streak end.