In all likelihood, Seahawks tight end Will Dissly saw a promising season end far too early due to a serious injury. While nothing is official yet, Seahawks coach Pete Carroll said that the Achilles injury sustained by the second-year tight end in Sunday's win at Cleveland was a season-ender, "unless something miraculous happens."

Dissly, who led the Seahawks with four receiving touchdowns through five games, went down in the end zone attempting to catch a second-quarter pass from Russell Wilson. Last year, Dissly landed on injured reserve with a ruptured patellar tendon that occurred in Week 4.

"Really unfortunate that we lose Will Dissly," Carroll said. "He has been a fantastic part of our team, and he's just a young guy, but he has made a big impression early on all of us, and we'll miss the heck out of him as he recovers from an Achilles injury."

Carroll said Dissly was already focused on getting back from another serious injury before the team even left Cleveland.  

"We talked last night in the locker room," Carroll said. "His attitude was incredible. He's talking about 2020 already: 'You can count on me, I can't wait to get working.' Just an amazing attitude. It was the attitude that took him through the past rehab. You hate to get good at something like that, but he's prepared to take this on, and he'll do a fantastic job and will beat all of the timeframes that he's faced with, and he'll do a great job returning."

Dissly's injury leaves the Seahawks with two healthy tight ends, Luke Willson and Jacob Hollister, as well as tackle George Fant, who also serves as a blocking tight end—though that role is on hold until Duane Brown is back at left tackle. The Seahawks could also get back Ed Dickson soon. Dickson, who had knee surgery in August, is currently on injured reserve, but is eligible to return after Seattle's eighth game.

"He's still got a couple weeks yet before he can come back," Carroll said. "He's working really hard, he's doing everything—he's running and lifting and doing all of that, all that he's allowed to do. What will be telling is when he finally can come back on the field, can he do the football moves and the football regimen and respond and be OK with that? He's working to get ready right now, so we're very fortunate to have a chance to have a guy like Ed coming back to us with not too much of a space in there without Will. In the meantime, we're going to count on our guys, you saw we had Jacob Hollister up this week, and he did a nice job in the game for his first time out, and we're counting on Luke to do a good job for us, and we'll build around that."

Carroll also didn't rule out the possibility of adding another tight end from outside of the team, saying, "We're always working at it."

Here's what Carroll said about some other Seahawks injuries:

T Duane Brown

Brown, who initially injured his biceps in Week 3, played the following two games, but was held out against the Browns. The hope is that he can get back this week, but if not he should return in Week 8. 

"We'll wait and see," Carroll said. "He feels a lot better this week than he did. It's a day-to-day thing for us right now, it's a race to see if we can get him back. We thought it might be two weeks if it didn't go quicker than that. So, we'll see. If he doesn't make it this week, he should be in great shape to come back next week."

G D.J. Fluker

Fluker missed Sunday's game with a hamstring injury sustained in Seattle's Week 5 win over the Rams.

"We're day to day on Fluke," Carroll said. "He's going to work out today and tomorrow, and we'll just take him through each day and see how he comes along and see if he can respond. We don't know right now if he'll make it or not."

RB Rashaad Penny

Penny was held out with a hamstring injury, but should be back on the practice field Wednesday. 

"We'll find out during the week," Carroll said. "He finished up the week in pretty good shape, but we wanted to make sure we got through the week and put it behind him, and here we go again. I think he'll be going full speed on Wednesday."

G Phil Haynes and DT Demarcus Christmas

The Seahawks should have a pair of rookies returning to practice this week, as guard Phil Haynes and defensive tackle Demarcus Christmas are both eligible to come off the physically unable to perform list. They are allowed to return to practice without immediately being added to the 53-man roster, so the Seahawks don't have to rush them back if they aren't ready.  

"Phil Haynes comes back to us this week, we're anxious to see Phil," Carroll said. "He has been ready for a number of weeks, but had to wait for the six-week period to end. He comes to us and we're excited to see what he can do."

On Christmas, Carroll said, "Demarcus will practice also. Both of those guys really worked out together in rehab and both of those guys have been prepared to come back much sooner than this deadline, so they're in good shape. But again, they haven't worked with us at all, so we don't know."

C/G Ethan Pocic

Pocic was placed on injured reserve Friday with a mid-back injury, but Carroll said Monday that there is a chance he could return late in the season. Players on injured reserve have to sit out at least eight games, so if he were to make it back, it would not be until after Seattle's Week 14 game against the Rams.

"We wanted him back, but we wanted him back healthy," Carroll said. "He had a pretty serious injury that he was fighting back from. He was committed to playing through it and all that, but he still had some soreness and still had some difficulties, so we just thought it would be the best thing for him to get him well, then we can get him back in the third part of the season. That'd be awesome to get him back. He's a very versatile player, he did a nice job for us, played a lot for us when Mike (Iupati) was down. Hopefully he'll be available to us as we turn this thing around."