Matt Harrison SP TEX 6 Days

Harrison (back) has increased his throwing to 120 feet from flat ground but won't attempt to throw from the mound for at least a month, the team's web site reports.

Any sort of major setback could be career-ending for Harrison, so look for a cautious approach here as he attempts to return from spinal fusion surgery.

Matt Harrison SP TEX 12 Days

Harrison (back) will continue to throw from flat ground for another three weeks, the Fort Worth Star-Telegram reports.Harrison is attempting to come back from spinal fusion surgery, with a return in early June the best case scenario at this point.

Matt Harrison SP TEX 22 Days

Harrison (back) is still playing catch from 90 feet, FOX Sports Southwest reports.The left-hander has been limited to a throwing distance of 90 feet for three weeks now. While Harrison insists that he hasn't had any sort of setback, a recent report suggested he's been slowed a bit by stiffness in his hip. Harrison said he's simply focused on improving his mechanics at 90 feet before changing up his routine.

Matt Harrison SP TEX 29 Days

Harrison (back) has progressed to throwing from 90 feet, but he's been slowed by stiffness in his hip, the Fort Worth Star-Telegram reports. "I can't complain. I feel really good," he said. "It's more tedious stuff than I've ever done before. It's kind of boring doing everyday but it's what I've got to do so it's what I'm going to do."

Harrison will report to Surprise with the rest of the team's pitchers and catchers on February 16, but it's expected that he'll be sidelined until the second half of 2015 as he progresses through the final stages of his rehab following spinal fusion surgery on his lower back.

Matt Harrison SP TEX 1 Month

Harrison (back) threw from 75 feet but won't throw off of a mound until the middle of March, Jeff Wilson of the Fort Worth Star-Telegram reports.

Harrison underwent spinal fusion surgery in his back last June, but he appears on track for a 2015 return despite initial concerns that it could be a career-ending injury. At this point the hope is that he'll be fully healthy by mid-March, but there will still be a long way to go before making a return to the big leagues so an exact timetable for the 29-year-old is hard to figure as of now.

Matt Harrison SP TEX 2 Months

Harrison (back) was cleared Sunday to resume a throwing, Anthony Andro of FOX Sports Southwest reports.

The lefty, who is attempting to return from career-threatening spinal fusion surgery, will hold off for two more weeks before beginning the program. Harrison said his spine is about 85 percent fused at the moment, but if he proceeds cautiously with his rehab, the hope is his back will be fully healthy by early March. It's hardly a guarantee that everything will go according to plan for Harrison, whose health risk is further compounded by the fact that he's already had two previous surgeries on his back. The Rangers would probably be fortunate to get a handful of useful starts out of the 29-year-old in the second half of the 2015 season.

Matt Harrison SP TEX 5 Months

Harrison (back) is expected to start throwing again in January, Jeff Wilson of the Fort Worth Star-Telegram reports.

Harrison needed spinal fusion surgery in his lower back in June, and it was thought to be a possible career-ending injury at the time. It appears he is on track to begin his recovery process in January, however, which could eventually lead to a return to the mound. It's unclear what his timetable is at this point, but he may be able to return at some point in the 2015 season.

Matt Harrison SP TEX 9 Months

Rangers transferred LHP Matt Harrison from the 15-day disabled list to the 60-day disabled list.

It was a procedural move to open a 40-man roster spot for Brad Snyder. Harrison underwent spinal fusion surgery last week and might never pitch in the majors again.

Matt Harrison SP TEX 9 Months

Matt Harrison underwent spinal fusion surgery on Tuesday.

The Rangers haven't offered additional details other than the fact that Harrison will spend two days in the hospital. However, it's been reported previously that the operation could threaten the left-hander's career, so obviously his 2014 campaign is over. Harrison has been limited to just six starts over the last two seasons due to back issues.

Matt Harrison SP TEX 10 Months

Rangers placed LHP Matt Harrison on the 15-day disabled list with lower back inflammation.

Of course, the injury is much more serious than that. Harrison is looking at the possibility of needing spinal fusion surgery, which could threaten his career. More will likely be known about his outlook in the coming days.