The D-backs will be facing a familiar foe on Saturday, as Rockies starter Jorge De La Rosa has pitched against Arizona, the team that originally signed him, 27 times.
De La Rosa has thrown 136 1/3 innings against Arizona, and all those innings have paid off, as his 3.17 ERA is the second-lowest against any team he's pitched at least 20 innings against.
In contrast, D-backs starter Shelby Miller has faced the Rockies just seven times.
Despite Coors Field's hitter-friendly confines, De La Rosa has been more successful at home than in Arizona. He has an 8-1 record and a 2.00 ERA over 67 1/3 innings at home compared with a 9-8 record and 3.29 ERA over 131 1/3 innings in 23 career starts at Chase Field.
Three things to know about this game
• Miller is making his second start since returning from the 15-day disabled list with an injured right index finger. He was excellent in his most recent start, holding the Phillies to one run over 6 2/3 innings with five strikeouts, one walk and five hits. He had a 7.09 ERA before going on the DL.
• The Rockies have teed off against Miller this season, scoring nine runs in 9 2/3 innings over two starts. Miller's May 1 start -- which lasted 3 2/3 innings -- was his second shortest of the season. Carlos Gonzalez, DJ LeMahieu and Nick Hundley are hitting a combined 7-for 11 off Miller in those two starts.
• D-backs manager Chip Hale said that shortstop Nick Ahmed will probably be healthy enough to play on Saturday after dealing with "some hip issues" that kept him out of the lineup on Thursday and Friday. Before hitting the game-winning single as a pinch-hitter on Thursday, Ahmed endured a 0-for-14 stretch.
Ben Weinrib is a reporter for MLB.com based in Denver. This story was not subject to the approval of Major League Baseball or its clubs.