Castro is out of the lineup Friday against Atlanta.

EDGE Analysis

Coco Montes will draw another start at second base with left-hander Jared Shuster on the mound for Atlanta. Castro also sat against a righty Thursday and may be at risk of losing more and more playing time. He's slashed just .263/.280/.314 through 144 plate appearances this year for Colorado.

Castro is out of the lineup for Monday's game against the Red Sox.

EDGE Analysis

The lefty-hitting Castro will take a seat for the series opener with Boston bringing a southpaw (James Paxton) to the hill. Rookie Coco Montes -- who went 2-for-3 with a two-run home run in Sunday's win over the Padres in his MLB debut -- will pick up a second straight start at the keystone in place of Castro.

Castro is not in the starting lineup Sunday versus the Padres, Jeff Sanders of The San Diego Union-Tribune reports.

EDGE Analysis

Castro will remain on the bench for a second straight game as the Rockies wrap up their series with the Padres. Coco Montes was called up from Triple-A Albuquerque and will make his major-league debut at second base, batting seventh against San Diego.

Castro is not in Saturday's lineup against the Padres, Jeff Sanders of The San Diego Union-Tribune reports.

EDGE Analysis

Castro is hitting .238 with three runs and one RBI in 21 at-bats this month. Alan Trejo gets the start at the keystone while batting eighth.

Castro is out of the lineup Tuesday against the Giants.

EDGE Analysis

Alan Trejo will start at second base and bat eighth for the Rockies as the Giants try a bullpen game featuring opener John Brebbia. Castro should be an option off the bench.

Castro isn't in the Rockies' lineup Saturday against Kansas City.

EDGE Analysis

With Daniel Lynch set to take the mound for the Royals on Saturday, the left-handed Castro will begin the game in the dugout. Alan Trejo will take over at second base and bat eighth.

Castro went 2-for-4 with an RBI and a run scored in Thursday's loss to the Diamondbacks.

EDGE Analysis

Castro has been hot recently, going 8-for-24 (.333) over his last six games to boost his slash line to .279/.293/.342 through 117 plate appearances. The former Tiger isn't likely to provide much power, despite playing half his games at Coors Field -- he's yet to homer this season after launching seven long balls in 120 games last year. Still, he should continue to serve as the Rockies' primary second baseman against right-handed pitching.

Castro is not in the starting lineup Wednesday at Arizona.

EDGE Analysis

Alan Trejo will play second base and bat eighth against the Diamondbacks and left-hander Tommy Henry. Castro has turned it on offensively over the last week-plus but will likely continue to sit versus most southpaws.

Castro will sit Sunday versus the Rangers.

EDGE Analysis

Castro will get a breather as the Rockies face southpaw Andrew Heaney on the mound Sunday. Righty bat Alan Trejo will take over at second base and bat seventh in the series finale with Texas.

Castro went 3-for-4 with a double, three RBI and one run scored in Monday's win over Cincinnati.

EDGE Analysis

Castro knocked an RBI single and came around the score in the first inning. He then gave Colorado a lead with his two-run double in the seventh. Castro entered Monday with a .238 average this month and picked up his first multi-hit game since April 30. He's now slashing .254/.278/.313 with 12 RBI in 25 games.