Winn will be shut down for seven days after an MRI determined his right elbow injury is nerve related, Susan Slusser of the San Francisco Chronicle reports.

EDGE Analysis

It's good news that Winn doesn't have any structural damage in his elbow, but he's still going to require some extended down time, especially since it's the second time he's been on the 15-day injured list with an arm-related issue. Since he won't begin a throwing program until late June, it's probably safe to rule Winn out at least through the All-Star break.

The Giants placed Winn on the 15-day injured list Saturday with right elbow inflammation, Shayna Rubin of the San Francisco Chronicle reports.

EDGE Analysis

Winn allowed five earned runs in just 2.2 innings during his last start Thursday, and it's possible that his elbow injury played a part in his poor performance. The 26-year-old will now head to the injured list for the second time this season, putting another dent in a decimated Giants pitching staff. David Villar was brought up from Triple-A Sacramento in a corresponding move, though it is unclear who will take Winn's place in the rotation.

Winn (3-8) took the loss against the Cardinals on Thursday, allowing five runs on five hits and one walk over 2.2 innings while striking out two.

EDGE Analysis

Winn ran into trouble immediately, allowing a walk and a hit in the first two at-bats before going on to surrender three runs in the opening frame. He would go 1-2-3 through the second inning but once again failed to retire the first two batters to begin the third, leading to another two runs coming home for St. Louis. The right-hander has now surrendered five or more runs in five of his last six starts and has lost his last five decisions (spanning six starts). He currently holds a 10.38 ERA this month (three starts) after posting an 18.36 ERA through three starts in May.

Winn did not factor into the decision in Saturday's 4-3 loss to the Angels, allowing three runs on five hits and two walks with six strikeouts over six innings.

EDGE Analysis

Winn surrendered a solo home run to Mickey Moniak in the second inning then allowed a game-tying two-run homer to Logan O'Hoppe in the sixth. While he stumbled late, Winn registered 17 swinging strikes on 91 pitches and logged his first quality start since May 28. On the season, Winn now owns a 6.66 ERA, 1.33 WHIP and 46:19 K:BB in 11 starts and tentatively lines up to face the Cardinals next week.

Winn (3-7) suffered the loss Sunday, allowing seven runs on six hits and two walks over 4.1 innings against the Rangers. He struck out seven.

EDGE Analysis

At least Winn was efficient in needing just 69 pitches while allowing eight baserunners and striking out seven. Otherwise, there wasn't much else good to glean from his start. He allowed five runs in the first two innings, then was pulled in the fifth after allowing a walk and a double, with both runners eventually coming in to score to leave him with a final line of seven runs allowed. The other positive is that Winn was able to return to the hill after landing on the IL with the dreaded forearm strain in mid-May. However, it was more of the same as he had allowed 17 runs in three starts spanning 8.1 innings prior to landing on the injured list. If Winn is able to maintain his spot in the rotation, his next start is tentatively slated to take place next weekend when the Giants host the Angels.

Winn (forearm) was reinstated from the 15-day injured list ahead of his start against the Rangers on Sunday, Shayna Rubin of the San Francisco Chronicle reports.

EDGE Analysis

The right-hander landed on the shelf in mid-May with a forearm strain, but he'll rejoin the Giants' rotation after being sidelined for less than a month. Winn delivered three straight quality starts in April but struggled in his final three outings before going to the injured list with 17 runs allowed and a 5:5 K:BB over 8.1 innings.

Winn (forearm) will return from the 15-day injured list and start Sunday's game against the Rangers, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

A right forearm strain has kept Winn sidelined since mid-May, though he made a rehab start in the rookie-level Arizona Complex League on Tuesday, giving up one run on two hits and two walks while striking out six batters over 3.2 innings. The 26-year-old righty allowed 17 earned runs in just 8.1 frames across his last three outings before going on the IL, and it's unclear whether or not he'll be working under any limitations during his first start back.

Winn (forearm) allowed one run on two hits and two walks while striking out six over 3.2 innings in a rehab appearance in the rookie-level Arizona Complex League on Tuesday.

EDGE Analysis

The Giants had mulled the possibility of having Winn skip a rehab start and instead returning from the 15-day injured list and slotting back into the rotation Tuesday. While that didn't happen, Winn could just require the one rehab outing before rejoining the big club Sunday against the Rangers or Monday versus the Astros. The right-hander has been out since mid-May with a strained right forearm.

Winn (forearm) could bypass a rehab start and return from the 15-day injured list this week to join the San Francisco rotation, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

Winn remains tentatively scheduled for a rehab start with Triple-A Sacramento on Tuesday, but the Giants might need to expedite his return to the majors with Blake Snell exiting his start in Sunday's 7-5 loss to the Yankees with groin tightness and likely to land on the injured list. Snell's next turn comes up Saturday in Texas, though it's possible Winn is brought back to start earlier than that. Because Winn isn't fully stretched out yet and hasn't pitched since May 14, fantasy managers would be best off keeping him benched this week if the Giants elect to activate him.

Winn (forearm) will start a rehab assignment Tuesday at Triple-A Sacramento, Shayna Rubin of the San Francisco Chronicle reports.

EDGE Analysis

Giants manager Bob Melvin hinted earlier this week that Winn could've been activated from the IL and rejoined the big-league rotation as soon as Monday or Tuesday. However, we now know Winn will need a rehab stint before being reinstated. Considering Winn threw 45 pitches in a bullpen May 27, it's likely he'll need only one or two minor-league appearances before getting the green light.