CJ Kayfus and Brayan Rocchio homered, Gavin Williams pitched 5⅓ scoreless innings and the Cleveland Guardians beat the Arizona Diamondbacks Aug. 18.

Cleveland's Gavin Williams has quietly transformed himself into one of baseball’s most intriguing young pitchers.

The Cleveland Guardians need another starter in their rotation, and these are the best options to fill that void.

The Guardians provided a progress report on many prospects, including Travis Bazzana and Chase DeLauter, who has resumed baseball activity amid rehab.

Diamondbacks starter Zac Gallen is 2-0 with a no-decision in August and is pitching better of late, but his ERA is his career-worst.

Arizona left-hander Eduardo Rodriguez will look to maintain his perfect career record against Cleveland when the Diamondbacks and Guardians meet in the second contest of a three-game series in Phoenix on Tuesday.

Gavin Williams and the Guardians face Zac Gallen and the DBacks at Chase Field. Here are the starting lineups for Monday’s game between the Guardians and Diamondbacks. Where: Chase Field, 9:40 p.m. ET.

The four Guardians prospects who rank in MLB.com’s top-100 list include Travis Bazzana (No. 15), Chase DeLauter (No. 56), Angel Genao (No. 57), and CJ Kayfus (No. 59).

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“This is the lefty that haunts their dreams,” Paul Hoynes declared bluntly on the latest Cleveland Baseball Talk Podcast. “No matter what team he pitches for, no matter what team he plays for, he always seems to face the Guardians and he always seems to come out one step ahead of them.”

The Guardians have been one of MLB’s hottest teams over the last few weeks, primarily because of the offense. Cleveland had a team slash line of 251/.326/.421 from the All-Star Break heading into their series against the Braves.