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6/1/2013 7:51 P.M. ET

Cubs place Dolis on disabled list and promote Parker

Mild forearm strain lands reliever on DL after five scoreless appearances

CHICAGO -- The Cubs selected the contract of right-hander Blake Parker from Triple-A Iowa on Saturday and placed right-hander Rafael Dolis on the 15-day disabled list with a mild right forearm strain.

Right-hander Alex Burnett was designated for assignment to make room for Parker on the 40-man roster.

Parker, who will wear No. 50, will be available for Saturday evening's game against the D-backs.

The 27-year-old was 0-1 with seven saves and a 2.04 ERA in 16 relief appearances in Triple-A, holding opponents to a .133 average. He had 26 strikeouts in 17 2/3 innings and has allowed one earned run in his past 8 2/3 innings, spanning nine outings.

Parker made his Major League debut with the Cubs last season, allowing four earned runs in six innings (6.00 ERA) over seven appearances. He was selected by the Cubs in the 16th round of the 2006 First-Year Player Draft.

Dolis, 25, has thrown five scoreless appearances in three stints with the Cubs this season.

Burnett, 25, was claimed off waivers from Baltimore on Monday, made an appearance on Wednesday and was optioned to Iowa the following day.

Wood pushed back to Friday to get extra rest

CHICAGO -- The Cubs have shuffled their rotation to give Travis Wood a couple extra days off, though the club says the left-hander is healthy.

Right-handers Scott Feldman and Matt Garza will start Tuesday and Wednesday, respectively, during the Cubs' two-game set against the Angels in Anaheim. Wood, originally scheduled to pitch Wednesday, will start Friday's series opener against the Pirates at Wrigley Field.

The Cubs, who are off Monday and Thursday, insist nothing is wrong with the 26-year-old lefty.

"He's pitched a lot of innings already, and a lot of pitches in those games and a lot of stressful innings, too," Cubs manager Dale Sveum said. "Just give him a few extra days."

Wood is 5-3 with a team-leading 2.75 ERA in 11 starts this season. He's already pitched 72 innings -- the second-highest on the team behind Jeff Samardzija -- and is on pace for 33 starts and 215 innings.

His career high is 197 1/3 innings, established last year between the Majors and Minors. Wood also has averaged 97 pitches per outing this season.

Sveum said now is the best time to give the lefty a short break.

"You're always going to try, when everything works out, to give somebody some extra time," Sveum said. "This is a good time, two months into the season, to give him a little breather."

Relaxed clubhouse contributes to Cubs' success

CHICAGO -- Cubs manager Dale Sveum doesn't police the clubhouse, but he likes what he hears about players preparing and relaxing each day.

"You gotta keep it loose. You can't play tight," Cubs right-hander Matt Garza said Friday. "You gotta keep it loose and let the guys play without the added pressure of, 'We gotta do this.' No, you just gotta play, and at the end of nine [innings] we'll find out how's it working. And if it's not working, we'll find a way to fix it."

That's music to Sveum's ears, as the second-year Cubs manager said he believes the most important aspect in clubhouse atmosphere is being familiar and balanced every day, regardless of the previous night's outcome.

"It's good that they're always loose," Sveum said before Saturday's game against the D-backs. "If you're struggling and you lose a game the day before, you need people to understand that that day's over and this is another day. Don't fall into that, 'OK, we're not playing well. We're going to turn the music down.' That stuff, to me, doesn't affect winning and losing baseball games."

Of course, the Cubs appear especially happy and loose because they're riding a five-game winning streak after dropping six straight.

"Winning cures all kinds of things," Sveum acknowledged.

Worth noting

• Former Cubs and current D-backs broadcaster Bob Brenly will sing "Take Me Out to the Ball Game," during Saturday's seventh-inning stretch. Brenly was in the Cubs' broadcast booth from 2005-12.

• The Cubs are still waiting for the swelling in reliever Kyuji Fujikawa's right elbow to subside before setting a date for his Tommy John surgery.

• Saturday marked shortstop Starlin Castro's 250th consecutive game played. Castro's streak is tops in the National League and trails only Detroit's Prince Fielder (398) for the longest in the Majors.

• The Cubs entered Saturday's game having hit three home runs in three straight games for the first time since doing so in four straight from May 27-30, 2005.

Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.