Diamondbacks Send A Clear Message With Latest Padres Lineup Shift

The D-backs and Padres clash tonight with strategic lineup adjustments and roster changes aiming to reverse recent slumps and capitalize on their opponent's vulnerabilities.

The Diamondbacks are making a few notable changes tonight, and the biggest one is up top: Lars Nootbaar is leading off against right-hander Casey Mize.

That’s a look Arizona is likely to use mostly against righties, but it also makes sense given how rough the alternatives have been. Corbin Carroll and Geraldo Perdomo have combined for 21 starts in the leadoff spot and hit just .148, going 12-for-81 with an OPS of .562. The hope is that Nootbaar can bring the same kind of patience he showed in his D-backs debut last night, when he drew a pair of walks.

The lineup is also missing Ketel Marte and Nolan Arenado, both getting scheduled rest. Marte’s recent stretch has been especially tough.

Over his last 24 games, he’s hit .178/.246/.290 for a .535 OPS. Since the start of July, he’s been worth -0.3 fWAR, the lowest mark on the active roster.

Carroll sits at +0.1 over that same span, though he has at least chipped in on the bases and in the field.

There’s another interesting note in the batting order: James McCann has quietly been almost as valuable as Gabriel Moreno since July, even though he has appeared in only one-third as many games.

Arizona also made a pair of roster moves. Gabriel Moreno is back on the roster, while Adrian Del Castillo was optioned out, which was an expected shift. The other move was less predictable: Ryan Thompson was sent down after a rough stretch since the break.

That downturn has been stark. Thompson posted a 2.88 ERA in the first half and looked like one of the club’s steadier relievers, but in his eight appearances since then he’s put up a 12.79 ERA, allowing 17 hits and nine earned runs in 6.1 innings, along with one homer, four walks and three strikeouts. Some of that has come with bad luck - including a .519 BABIP - but if there’s a physical issue behind it, that would at least explain the drop-off.

The move also opens the door for another left-handed bullpen option with Abner back in the mix. And in the minors, Blake Walston threw a clean inning in his first rehab outing for Reno.

With Arizona coming off E-Rod’s blow-up and the loss that followed, tonight’s matchup carries extra weight for both clubs.

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