Grimm (1-2) was credited with the loss in Thursday's game against the Reds. In an inning of work, he allowed two earned runs on a hit and two walks, while striking out two.

EDGE Analysis

Grimm wasn't the only Cubs pitcher who struggled, as the Reds scored 13 runs, but he was tagged with the loss when he gave up a two-run home run to Phillip Ervin in the seventh inning. The 28-year-old now has a 5.40 ERA and he could be heading back to Triple-A when Koji Uehara returns from the DL, which could happen next week.

Grimm was recalled from Triple-A Iowa on Wednesday, Mark Gonzales of the Chicago Tribune reports.

EDGE Analysis

Koji Uehara's placement on the DL with a neck issue has opened the door for Grimm to come up for the fourth time this season. He has posted a 5.18 ERA in 36 appearances with the Cubs this year, with home runs and walks being his biggest problems. Look for Grimm to work primarily in low-leverage spots for the time being.

Grimm was optioned to Triple-A Iowa on Tuesday, Jesse Rogers of ESPN.com reports.

EDGE Analysis

With Justin Wilson arriving in Chicago from the Tigers, there simply was no room for Grimm and his 5.18 ERA. The 27-year-old will head back to the minors for more seasoning, although he'll likely be back in the big leagues by September to offer bullpen help when the rosters expand.

Grimm was recalled from Triple-A Iowa on Monday, Jesse Rogers of ESPN.com reports.

EDGE Analysis

This will mark Grimm's third stint with he big club this season; the 28-year-old compiled a 7.52 ERA and 15:8 K:BB through 14.1 innings with the Cubs earlier in the season. Felix Pena was optioned to Triple-A Iowa in a corresponding move.

The Cubs optioned Grimm to Triple-A Iowa on Thursday, Bruce Miles of the Chicago Daily Herald reports.

EDGE Analysis

The right-hander is sent down to make room for Eddie Butler, who's joining the Cubs to start Friday. Grimm is saddled with a 7.53 ERA in 14.1 innings with the big club this year and probably is better suited for riding the shuttle between Iowa and the north side.

Grimm was summoned from Triple-A Iowa on Sunday, Patrick Mooney of CSN Chicago reports.

EDGE Analysis

The move comes on the heels of starter Brett Anderson (back) being shuttled to the DL and reliever Rob Zastryzny's demotion to Triple-A. Grimm spent just two days in the minors after being sent down on Friday for his early-season struggles with the big club (five homers allowed in less than 13 innings), so hopefully he'll be able to tighten things up in the WIndy City this time around.

Grimm was optioned to Triple-A Iowa on Friday, Bruce Levine of 670 The Score in Chicago reports.

EDGE Analysis

The right-hander has gotten off to a rocky start with the Cubs this season, allowing a whopping five home runs in just 12.1 innings. Still, Grimm has shown an ability to rack up strikeouts, so look for him to work on location while down at Triple-A before being called back up later in the season. The Cubs recalled Felix Pena in a corresponding move Friday.

Grimm (1-0) recorded his first win of the season Tuesday against the Brewers. He pitched a scoreless sixth inning with two strikeouts.

EDGE Analysis

The Cubs only got 3.2 innings from starter Brett Anderson, so they needed a pick-me-up from guys like Brian Duensing and Grimm. Grimm did his part by pitching a perfect top of the sixth inning, and then the Cubs scored four times in the bottom half to take the lead.

Grimm recorded his first hold of the season in Monday's win over the Dodgers by pitching a perfect seventh inning.

EDGE Analysis

Grimm certainly didn't enter a clean game, as two walks by Carl Edwards and a catcher's interference from Willson Contreras loaded the bases with no outs to start the inning. Grimm retired Joc Pederson on a shallow flyball, then induced a double-play grounder from pinch-hitter Andrew Toles. Grimm isn't in the mix for saves right now, but he could snag some more holds as a valuable member of Chicago's middle relief corps.

Grimm made his first appearance of the season in Friday's loss to the Brewers, recording one out and allowing one hit.

EDGE Analysis

The right-hander had missed the beginning of the season due to personal matters, but should see regular relief appearances now that he's back in the bullpen. Grimm allowed a two-out single to Hernan Perez before getting Manny Pina to fly out, ending his season debut. He'll be aiming to improve upon his troublesome 4.10 ERA from last season.