Morrow (elbow) was placed on the 10-day IL, Jordan Bastian of MLB.com reports.

EDGE Analysis

This was always going to be the case, but the move became official Thursday. Morrow could head to the minors in mid April for a rehab assignment, but it would not be surprising at all if he faced setbacks and delays, given his personal injury history and the nature of this specific injury.

Morrow (elbow) said Monday that he believes he'll be ready to begin a minor-league rehab assignment in mid-April, Mark Gonzales of the Chicago Tribune reports.

EDGE Analysis

Morrow noted that his eventual advancement to the rehab assignment would be contingent on him completing several tests beforehand, including approximately three bullpen and two live batting practice sessions. He'll stick around in Arizona at extended spring training and begin the season on the injured list in advance of the Cubs' Opening Day game March 28 versus the Rangers.

Morrow (elbow) threw a 25-pitch bullpen session Thursday, Jesse Rogers of ESPN.com reports.

EDGE Analysis

Morrow ramped things up after throwing a 20-pitch bullpen with no issues earlier in the week. The right-hander threw all fastballs again and said everything went well afterwards. Barring any setbacks, Morrow is hoping to return to game action in May.

Morrow (elbow) threw a 20-pitch bullpen session Monday, Jordan Bastian of MLB.com reports.

EDGE Analysis

Morrow continues to slowly work his way back November elbow surgery. He threw strictly fastballs during Monday's session and reported no issues afterwards. Assuming the right-hander still feels good in the coming days, he'll likely ramp things up during another mound session later in the week (Thursday or Friday). Morrow still isn't expected to be ready for game action until at May.

Morrow (elbow) will throw a long-toss sesion Friday and a bullpen session Monday, Jordan Bastian of MLB.com reports.

EDGE Analysis

Morrow is still not expected to be ready for game action until May, but his recovery from November elbow surgery continues to move forward without setbacks. While he's out, Pedro Strop is expected to handle the ninth inning, though Strop is dealing with a mild right hamstring strain. Carl Edwards and Steve Cishek would be the next men up should Strop also be forced to miss time.

Morrow (elbow) is scheduled to throw from 150 feet Sunday, Wednesday and Friday before possibly logging a bullpen session on March 18, Mark Gonzales of the Chicago Tribune reports.

EDGE Analysis

March 25 was originally penciled in as the target date for Morrow's first bullpen session of the spring, so it appears his rehab could be slightly ahead of schedule. However, the Cubs will likely remain cautious with their closer, who isn't expected to join the team until May as he recovers from biceps inflammation that ended his 2018 campaign in July.

Morrow (elbow) continues to build up his throwing distance but isn't expected to throw a bullpen session for three more weeks, Jordan Bastian of MLB.com reports.

EDGE Analysis

Morrow has now been throwing from 120 feet but still isn't particularly close to getting back on the mound. The Cubs have handled his recovery from November elbow surgery cautiously, a smart move considering the veteran's lengthy injury history. He isn't expected to return to game action until May. In the meantime, Pedro Strop is lined up for closing duties.

Morrow (elbow) threw from 105 feet Wednesday and is now allowed to play catch every day, Jesse Rogers of ESPN.com reports.

EDGE Analysis

Morrow continues to move forward slowly following November elbow surgery. He's expected to miss the first month of the season, and while Wednesday's progress is certainly a positive sign, he's not a pitcher where a smooth recovery can be taken for granted. His list of injuries is long, and he didn't throw a pitch after the All-Star break last season after his biceps injury appeared initially to be a relatively minor one.

Morrow (elbow) threw from 90 feet Wednesday, Jordan Bastian of MLB.com reports.

EDGE Analysis

Morrow continues to work his way back from arthroscopic elbow surgery he underwent back in November. The right-hander, who is on track to miss at least the first month of the 2019 campaign, is hoping to be cleared for daily catch by next week. While Morrow is on the shelf, Pedro Strop is expected to handle the ninth inning for Chicago.

Morrow (elbow) is expected to miss at least one month to begin the 2019 season, Sahadev Sharma of The Athletic reports.

EDGE Analysis

After an injury riddled 2018 campaign, Morrow underwent arthroscopic elbow surgery back in November. While he hasn't experienced any setbacks in his recovery, the reliever is about a month behind his normal offseason throwing schedule -- he recently started throwing a tennis ball off a wall to get a feel for his throwing motion, and he's hoping to resume playing catch Feb. 6 after doing so Jan. 6 last offseason. An exact timetable for his return should clear up as he progresses in his recovery. Though Morrow figures to reclaim his role as the team's closer once healthy, it's unclear how the Cubs will approach the ninth inning in his absence.