MILWAUKEE -- Having few glaring holes on a roster that was coming off a franchise record for wins put the Brewers in position to make moves on the edges precisely like the one they pulled off on Saturday, when they acquired left-handed reliever Angel Zerpa from the Royals in exchange for reliever Nick Mears and utility man Isaac Collins , a source told MLB.com.

The clubs haven't confirmed the transaction.

Signings & Trades

The versatile switch-hitting Collins is coming off a fourth-place finish in NL Rookie of the Year Award balloting and Mears has had stretches of high-leverage work when healthy over the last year and a half. But in Zerpa, 26, the Brewers acquired a lefty who has been durable to the tune of 129 appearances over the past two seasons who has held left-handed batter

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