Mattison was listed as a non-participant in Tuesday's practice due to a concussion.

EDGE Analysis

After missing two games following an emergency appendectomy, Mattison returned to action for the Week 15 loss to the Bears and played a minor role behind lead back Dalvin Cook, finishing with one carry for one yard and a 14-yard reception over his six offensive snaps. Mattison appears to have picked up a concussion along the way, and he'll now have to clear the NFL's five-step protocol for head injuries in order to suit up Christmas Day against the Saints. If Mattison can't play, Ameer Abdullah and Mike Boone would serve as the top depth options behind Cook.

Mattison (illness) is active Week 15 against the Bears.

EDGE Analysis

Mattison has been sidelined back-to-back weeks, but a brief return to Thursday's session opened the door for the second-year back to jump back into action Week 15. There will remain legitimate questions about his usage, however, as Dalvin Cook is the unquestioned No. 1 back, and both Ameer Abdullah and Mike Boone are active for the contest as well.

Mattison (illness) is listed as questionable for Sunday's game against the Bears.

EDGE Analysis

A return to practice Thursday as a limited participant gives Mattison a shot to avoid his third straight absence. He had an appendectomy Dec. 5, after seeing just five carries and 22 snaps in a three-game stretch Weeks 10 through 12. The Vikings will likely give Dalvin Cook the vast majority of backfield work in a crucial game this week, regardless of Mattison's availability.

Mattison (illness) was a limited practice participant Thursday.

EDGE Analysis

During the portion of the session open to the media, Mattison took part in stretching and individual drills, which was enough for him to get the limited tag on Thursday's injury report. He's missed the last two games after getting an appendectomy Dec. 5, but his presence at practice may indicate he won't make it three.

Mattison (appendectomy) went through stretches and individual drills during the open portion of Thursday's practice, Eric Smith of the Vikings' official site reports.

EDGE Analysis

Mattison's appearance at practice is his first since Dec. 4, as he required an emergency appendectomy a day later. The extent of the running back's participation Thursday won't be known until the Vikings release their second Week 15 practice report later in the day, but his presence on the field at least gives him an outside chance at returning from a two-game absence Sunday against the Bears.

Mattison (illness) didn't practice Wednesday.

EDGE Analysis

Mattison underwent an appendectomy Dec. 5 and has missed two games in the process. Thus, it's no surprise he's unable to practice roughly a week and a half later. While Mattison has been sidelined, fellow backs Ameer Abdullah, Mike Boone and C.J. Ham have combined for 16 touches behind clear bell cow Dalvin Cook, who accrued a whopping 62.

Mattison (appendectomy) has been ruled out for Sunday's game against Tampa Bay.

EDGE Analysis

Mike Boone and Ameer Abdullah will be on hand for the tiny share of backfield work that doesn't go to Dalvin Cook, while Mattison will miss a second straight game after his Dec. 5 appendectomy.

Mattison (appendectomy) didn't practice Thursday, Andrew Krammer of the Minneapolis Star Tribune reports.

EDGE Analysis

Mattison sat out the Vikings' Week 13 win over the Jaguars after undergoing appendix surgery this past Saturday. Following back-to-back missed practices Wednesday and Thursday, we'd be surprised if he ends up backing up Dalvin Cook on Sunday against the Buccaneers.

Mattison underwent a successful appendectomy Saturday and has been ruled out for Sunday's game versus the Jaguars, Tom Pelissero of NFL Network reports.

EDGE Analysis

Mattison's absence could be extended beyond Week 13. Browns tight end Austin Hooper notably missed two games earlier this season after undergoing an appendectomy. A more definitive timeline should be revealed when the Vikings start practicing during the upcoming week. For Sunday's matchup against the Jaguars, Mike Boone and Ameer Abdullah figure to see more work behind lead back Dalvin Cook.

Mattison (illness) will not play in Sunday's matchup against the Jaguars, Ben Goessling of the Minneapolis Star Tribune reports.

EDGE Analysis

Mattison has only played 22 snaps across the last three weeks, but this injury could test the Vikings' depth at running back, particularly with Dalvin Cook (ankle) a bit banged up throughout practice all week. Expect to see a little bit of Mike Boone and Ameer Abdullah in an effort to spell Minnesota's top back.