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Indians left-hander Scott Barnes was designated for assignment Sunday to make room on the 40-man roster for newly-acquired right-hander Charles Brewer from Arizona.

(Chuck Crow/The Plain Dealer)

CLEVELAND, Ohio -- For those wondering why Scott Barnes survived the Indians' first roster manipulation in anticipation of the Rule 5 draft in December, the answer arrived Sunday morning.

The Indians have acquired right-hander Charles Brewer from Arizona for cash. To make room for Brewer on the 40-man roster, Barnes was designated for assignment.

Brewer, 26, was a combined 11-12 in 29 starts at Class AA Mobile and Class AAA Reno last season for the D-backs. He pitched 169 2/3 innings, struck out 138 and walked 48. Brewer was 8-10 at Reno and 3-2 at Mobile. The opposition hit .293 against him in Reno.

He made his big-league debut with Arizona in 2013, making four relief appearances. Arizona designated him for assignment on Nov. 20.

Brewer was Arizona's 12th-round pick in 2009 out of UCLA.

Barnes, slowed by injuries the last two years, pitched parts of the 2012 and 2013 seasons for the Tribe. He is 0-1 with a 5.20 ERA and one save in the big leagues.

The Indians acquired Barnes from the Giants for Ryan Garko on July 27, 2009. They have 10 days to trade, release or put Barnes on waivers.

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Barnes went 3-2 with a 3.69 ERA in 25 games this year at Class AAA Columbus. He struck out 35, walked 16 and allowed 22 hits in 31 2/3 innings.

• Indians' updated 40-man roster