What happened: The Arizona Diamondbacks (41-42) open a three-game home series against the San Francisco Giants after being swept by the Tampa Bay Rays. San Francisco is set to play the series without aces Logan Webb and Robbie Ray in the rotation.
Why it matters: Arizona has leaned heavily on the NL West's lower tier, posting a 30-40 mark against the rest of the league while building its record against the Giants and Rockies. Drawing San Francisco without Webb and Ray hands the Diamondbacks a favorable opening to push back toward .500 and steady a season that has slipped under break-even.
By the numbers: Arizona sits at 41-42 overall and is 30-40 against opponents other than the Giants and Rockies. The Diamondbacks enter the series off a sweep at the hands of Tampa Bay.
What to watch: Watch which starters San Francisco slots in for Webb and Ray, and whether Arizona can capitalize on the matchup to gain ground in the division.