Corbin (elbow) will make two more rehab starts before rejoining the Diamondbacks rotation, Jack Magruder of Fox Sports Arizona reports. Corbin allowed just two runs on three hits and three walks over 5.2 innings with Double-A Mobile on Saturday, an encouraging sign of his progress. Two more rehab starts would likely slate his return for some point in early July.

Corbin (elbow) allowed two runs on three hits and three walks, with three strikeouts over 5.2 innings in his latest rehab start at Double-A Mobile. Corbin threw 79 pitches in the outing and should be close to nearing a return to the D-backs in late June or early July. He may require another rehab outing or two to build up his arm strength further before returning.

Corbin gave up two runs on six hits over 4.2 innings in a rehab start at Double-A Mobile on Sunday. He struck out three and didn't walk a batter. This was an improvement over his first rehab outing, in which he gave up four runs on four hits and two walks in 0.2 of an inning at High-A Visalia. The left-hander threw 76 pitches Sunday and is likely to make two or three more rehab starts before rejoining the Diamondbacks near the end of the month.

Corbin (elbow) will begin a rehab assignment with High-A Visalia on Monday, Jake Rill of MLB.com reports. Corbin continues working his way back from the Tommy John surgery he underwent in march of 2014, and will take another step forward in a rehab start Monday. His fastball reportedly sits around 94 MPH according to manager Chip Hale, and if no setbacks occur as he builds arm strength, a late June or early July return seems plausible.

Corbin (elbow) covered 3.2 innings in an extended spring training start Monday, conceding no runs and striking out eight batters. The results should be taken with a grain of salt since they came against a smattering of low-level Diamondbacks prospects, but by all accounts, the lefty threw the ball well during the outing. According to manager Chip Hale, Corbin's fastball hovered around 94 miles per hour, and 36 of his 51 pitches checked in as strikes. Corbin has now made four starts at extended spring training, and after the Diamondbacks check up on the health of his elbow Tuesday, it's possible he could be cleared to begin a rehab assignment in the minor leagues. He'll probably make for a quality stash option now that he looks to be only a couple rehab starts off rejoining the Diamondbacks.

Corbin (elbow) threw 35 pitches in a bullpen sessions Thursday, but the next step in his rehab from Tommy John surgery is not clear according to Nick Piecoro of the Arizona Republic. Corbin's progress toward a return to the majors has been slowed after he didn't look great in an extended spring training start. Fantasy owners who were hoping for an early June return obviously need to reset their expectations until a clearer timeline is announced.

Corbin's next rehab outing may be pushed back, according to GM Dave Stewart, reports Nick Piecoro of the Arizona Republic. While the D-Backs are saying this is "nothing to be alarmed about," Corbin was not as strong in his most recent outing as he had been previously, so the D-Backs may opt to give him a bit of extra rest. It's understandably anxiety inducing news for Corbin owners given the rash of pitchers who recently had slow recoveries from Tommy John surgery, or required a second procedure, including teammate Daniel Hudson, but as of yet this isn't being deemed a set back.

Corbin (elbow) is scheduled to throw five innings (75 pitches) Monday at extended spring training, Nick Piecoro of AZ Central Sports reports. Corbin will embark upon one of the most meaningful leaps in the rehab process, and if all goes well, he'll be cleared for a rehab outing at Double-A Mobile the following week. The Diamondbacks are tentatively targeting an early-June return for their former ace.

The Diamondbacks are targeting June 4 for Corbin (elbow) to make his 2015 debut, Jack Magruder of FOX Sports Arizona reports. Corbin is set to begin a rehab assignment in the near future, and barring any setbacks, he will take the mound for the big club in early June for the first time since 2013.

Corbin was transferred to the 60-day DL Sunday. Corbin's roster spot was needed to make room for an extra reliever, but this shouldn't affect his estimated return date. He remains scheduled to begin a rehab assignment at some point over the next two weeks.