The case for
Miami Marlins
1.
Phillips' 2.08 ERA is fool's gold with a 3.88 xERA showing he's been bailed out by luck and sequencing. His 36:22 K:BB ratio across 43 innings screams regression coming.
2.
Miami took 2 of 3 from Arizona in their recent series, outscoring them 22-7 including an 8-0 shutout. They've found Arizona's number.
3.
The Marlins offense ranks slightly better than Arizona across every key metric despite similar averages, posting a .707 OPS to Arizona's .696.
The case for
Arizona Diamondbacks
1.
Kelly's 5.71 ERA understates how bad he's been with a catastrophic 7.65 xERA pointing to even uglier results ahead. His last start saw him torched for 7 runs in 5 innings by Washington.
2.
Arizona's offense has cratered recently, getting blanked twice in their last 5 games and averaging under 3 runs per game in that stretch. The 37:25 K:BB ratio from Kelly creates zero margin for error.
3.
The Diamondbacks are missing key bats with Gurriel Jr. and potentially others still working back from injury, thinning an already struggling lineup.