Bradford, who has been ruled out for Sunday's game against the Packers, traveled to New York recently to begin Regenokine treatments to address inflammation in his surgically repaired left knee, Ian Rapoport and Tom Pelissero of NFL.com reports.

EDGE Analysis

Per the report, Bradford's treatments involved drawing blood from the quarterback, spinning it down and then reinjecting it into his knee over five or six days. The Vikings are hopeful that the treatments will help remedy the knee joint pain he's experienced since suffered a non-contact bone bruise during the team's Week 1 win over the Saints. Bradford was able to return to the field for Monday's win over the Bears, but was visibly hobbled before aggravating the knee issue and exiting the contest shortly before halftime. Case Keenum will pick up his fourth start of the season in Week 6, but it's tough to project who might be under center for the Vikings in the weeks to come. In addition to Bradford's ongoing efforts to return to the field, Teddy Bridgewater, who has been sidelined since August 2016 following surgery to address a dislocated knee and additional ligament damage, could be cleared to resume practicing during the upcoming week. Once Bridgewater returns to the practice field, the Vikings will have 21 days to activate him and bring him aboard the 53-man roster. If Bridgewater performs well during practice, he could challenge either Keenum or Bradford for starting duties.

The Vikings ruled Bradford (knee) out for Sunday's game against the Packers.

EDGE Analysis

As expected, Case Keenum will make his fourth start of the season, after replacing Bradford at halftime in Monday's 20-17 win over the Bears. With Stefon Diggs (groin) also unavailable and Dalvin Cook (knee) already out for the season, Keenum will direct most of his passes to Adam Thielen, Kyle Rudolph, Jerick McKinnon and, possibly, Michael Floyd. Bradford's inability to practice this week isn't a good sign for his availability Week 7 against the Ravens.

Bradford (knee) isn't at Friday's practice and is unlikely to play in Sunday's game against the Packers, Chris Tomasson of the St. Paul Pioneer Press reports.

EDGE Analysis

Bradford hasn't practice all week after suffering a setback in Monday's 20-17 win over the Bears. He'll likely be ruled out on the final injury report Friday afternoon.

Bradford (knee) didn't participate in practice Thursday, Chris Tomasson of the St. Paul Pioneer Press reports.

EDGE Analysis

The absence marks Bradford's second in a row after aggravating the bone bruise in his left knee Monday in Chicago. In a post-practice media session Thursday, head coach Mike Zimmer wouldn't comment on Bradford's status, lending credence to the fact the quarterback is unlikely to suit up Sunday against the Packers. If Bradford is deemed inactive for the fourth time in five games this weekend, the Vikings will again trust in Case Keenum to direct the offense.

Bradford (knee) wasn't on the field for the beginning of Thursday's practice and wasn't expected to participate in the session, Andrew Krammer of the Minneapolis Star Tribune reports.

EDGE Analysis

The Vikings should relay later Thursday if Bradford was involved in practice in any capacity, but if the quarterback was in fact unavailable for the second straight session, his odds of playing Sunday against the Packers would take a hit. Bradford was visibly limited by the knee injury during his return from a three-game hiatus in Monday's win over the Bears, but was pulled just before halftime after aggravating the left knee injury. Case Keenum performed superbly over the final two quarters and looks on track to make his fourth start of the season in Week 6.

Bradford (knee) isn't practicing Wednesday, Chris Tomasson of the St. Paul Pioneer Press reports.

EDGE Analysis

Bradford returned from a three-game absence for Monday's eventual 20-17 win over the Bears, only to be removed at halftime after aggravating his knee during a brutal first half in which his sack yards (35) nearly matched his passing yards (36). Although an MRI on Tuesday failed to reveal additional damage, it's clear Bradford's bone bruise is far from being fully healed. He seems like a long shot to play in Sunday's game against the Packers, though Vikings brass has thus far stopped shy of acknowledging as much. Bradford previously admitted that his knee may not get back to 100 percent until the offseason, potentially opening the door for Case Keenum or Teddy Bridgewater (knee) to take over the starting gig for the rest of the year. Bridgewater could resume practicing as soon as next week.

Vikings athletic trainer Eric Sugarman said Tuesday that Bradford (knee) underwent a follow-up MRI following Monday's win over the Bears, which revealed no additional damage, Chris Tomasson of the St. Paul Pioneer Press reports. Bradford remains day-to-day, with Sugarman classifying the quarterback's injury as "wear and tear," according to Kevin Seifert of ESPN.com.

EDGE Analysis

After missing the Vikings' previous three games while enduring complications with his surgically repaired left knee -- which he tore in 2013 and 2014 -- Bradford returned to the starting lineup Monday but appeared highly uncomfortable and immobile in the pocket. Bradford completed just five of 11 passes for 36 yards and was sacked four times in the first half before departing after aggravating the left knee injury, resulting in backup Case Keenum finishing out the contest and performing far more effectively than his predecessor. After Bradford's poor showing Monday, Sugarman declined to say when he expected the quarterback to return to action, but more clarification on that front should come when Bradford is reevaluated ahead of Wednesday's practice. Though Bradford completed an NFL record 72 percent of his passes a season ago while throwing just five interceptions and dazzled in the Vikings' Week 1 victory over the Saints, his ongoing knee problems and the subsequent success of Keenum in recent weeks could result in a quarterback controversy when both signal callers are healthy. Adding a further wrinkle is the potential return of former starter Teddy Bridgewater (knee), who will be evaluated next week and could be cleared to come off the Physically Unable to Perform list and return to practice.

Bradford has been ruled out for the remainder of Monday's game against the Bears after appearing to aggravate his injured left knee, Patrick Finley of the Chicago Sun Times reports.

EDGE Analysis

Bradford had been struggling to get anything going offensively all night, although it's fair to wonder if his performance was compromised by his physical condition. Now that he's been pulled for the game, Case Keenum will take the reins of the Vikings offense.

Bradford (knee) is active for Monday's contest in Chicago, Ben Goessling of the Minneapolis Star Tribunereports.

EDGE Analysis

Bradford preceded his first game action since Week 1 with limited practices both Thursday and Friday. Head coach Mike Zimmer was coy with Bradford's potential to return after Friday's session, but he revealed Sunday evening that he expected the veteran quarterback to play Monday, per Courtney Cronin of ESPN.com. After taking part in pregame warmups for the first time since Week 2, Bradford indeed will make his second start of the season against the Bears' 12th-ranked pass defense.

Vikings coach Mike Zimmer expects Bradford (knee) to return for Monday's game against the Bears, Courtney Cronin of ESPN.com reports.

EDGE Analysis

Zimmer's expectation syncs with Bradford's optimistic comments from Friday, which preceded full practice participation Saturday and a 'questionable' designation on the injury report. The final call likely will still come down to a game-time decision, with the Vikings presumably wanting to see how Bradford's knee responds to a pregame workout Monday. His expected return is excellent news for primary receiving threats Stefon Diggs, Adam Thielen and Kyle Rudolph.