Duffy will be out for six more weeks with hamstring and back injuries, Rodney Page of the Tampa Bay Times reports.

EDGE Analysis

Duffy had been dealing with an unreported minor back issue, but the problem has worsened in recent days and has complicated his recovery from a strained left hamstring. He's now set to return in mid-May. Yandy Diaz and Daniel Robertson have received the starts at third base in the Rays' first four games.

The Rays placed Duffy (hamstring) on the 10-day injured list Wednesday.

EDGE Analysis

The transaction was merely a formality as the Rays finalized their active roster ahead of Thursday's season opener versus the Astros. Duffy remains in the midst of a two-week shutdown period, which the Rays hope will be sufficient maintenance time as he looks to overcome the strained left hamstring that has troubled him off and on during the spring. An exact timeline for his return from the IL probably won't be established until he's able to play in simulated or minor-league rehab games.

Duffy (hamstring) will be shut down from baseball activities for two weeks, Marc Topkin of the Tampa Bay Times reports.

EDGE Analysis

It turns out Duffy is dealing with a back injury on top of the hamstring issue that has bothered him throughout spring. He'll open the season on the injured list, and this latest setback confirms his stay on the shelf will extend beyond the minimum 10 days. Look for Yandy Diaz, Daniel Robertson and Joey Wendle to cover the hot corner in his absence.

Duffy suffered a setback with his hamstring Saturday and is expected to open the season on the injured list, Marc Topkin of the Tampa Bay Times reports.

EDGE Analysis

After Duffy was able to complete a running program earlier in the week without incident, he received the green light to re-enter the Grapefruit League lineup Thursday against the Braves. Duffy then picked up nine at-bats at the minor-league level Friday and was slated to play again Saturday versus the Tigers, but those plans were thwarted when his left hamstring soreness resurfaced prior to the contest. Expect the Rays to act conservatively with Duffy now that he's endured multiple setbacks with the hamstring since camp opened. With Duffy headed for the IL, the Rays will likely keep an extra outfielder in Guillermo Heredia on the Opening Day roster.

Duffy (hamstring) struck out in all three at-bats in his return to Grapefruit League action against the Braves on Thursday and got in nine at-bats in multiple minor-league games Friday, Juan Toribio of MLB.com reports.

EDGE Analysis

Duffy finally seems to be on the right track for Opening Day. With the infielder having missed considerable time this spring, his frenetic schedule the last two days was intended to help Duffy accelerate the process of getting his timing down at the plate. Duffy was limited to hitting and running the bases Friday, but he emerged from the long day with a positive outlook. "Feel good," Duffy said. "Tomorrow will be another big test with how it bounces back after back-to-back days on being on it, I felt good today."

Duffy (hamstring) will play for the first time since Feb. 28 in Thursday's spring game against the Braves, Neil Solondz of the Rays Radio Network reports.

EDGE Analysis

Duffy has been bothered by a sore hamstring all spring and has been limited only to the lone game on the final day of February, but after taking three weeks to recover he is ready to get back on the field. It remains to be seen if he has enough time to get in shape for Opening Day, but if he avoids any setbacks there is still a chance he could be ready for the start of the regular season. Duffy will play third base and hit leadoff in Thursday's contest.

Manager Kevin Cash said Duffy (hamstring) had a "really good day" and is "softly" scheduled to play in a spring game Thursday, Marc Topkin of the Tampa Bay Times reports.

EDGE Analysis

Duffy is on the cusp of returning to game action after getting through a series of running drills with no issues Monday. The third baseman has been sidelined for most of spring due to a hamstring issue, but he should still have enough time to get ready for the start of the season if he's able to return Thursday (or shortly thereafter).

Manager Kevin Cash confirmed that Duffy (hamstring) would run again Monday, Steve Carney of Sports Radio 620 WDAE reports.

EDGE Analysis

After experiencing no complications while fielding and taking batting practice Sunday, Duffy will get the green light to resume his running program. The third baseman noted that he ran at about 80 percent intensity Saturday and predicted that he would run close to 90 percent Monday, which Cash hopes will provide insight into whether Duffy will be ready to go for Opening Day. Cash previously said that Duffy won't necessarily need to return to action before the end of the Grapefruit League slate to confirm his availability for the start of the season.

Duffy (hamstring) took ground balls Sunday and manager Kevin Cash reported the session went well, Juan Toribio of MLB.com reports.

EDGE Analysis

Duffy had a productive weekend, as he'd also ran at 80-percent intensity Saturday. The oft-injured infielder clearly emerged from that activity without setbacks, considering he was able to get back on the field for Sunday's workout without limitations. Cash mentioned the team will continue to be cautious with Duffy in terms of reinserting him into game action, but he confirmed the 28-year-old will try running at 90 percent Monday as the next step in his rehab.

Duffy (hamstring) said he ran on the field at approximately 80 percent speed Saturday and felt good during the workout, Juan Toribio of MLB.com reports.

EDGE Analysis

Unless Duffy reports renewed discomfort with his hamstring upon returning to camp Sunday, he'll take some grounders in the infield that day before resuming running at around 90 percent Monday. The 28-year-old appears to be trending toward a return to the Grapefruit League lineup at some point next week, which would keep hope alive for him to avoid a stint on the injured list to begin the season.