They met just a month ago in Orchard Park. Now the Bills and the Dolphins pick up their rivalry, with Buffalo trying to add another conference win to their playoff resume, and Miami trying to win their third in a row.
Here are some of the issues to keep an eye on this weekend as the Bills head south:
1. WHAT DOES FEARLESS LOOK LIKE?
After losing two of their last three, head coach Sean McDermott has challenged his team to play fearlessly. That's what quarterback Josh Allen told the media this week.
Veteran Center Mitch Morse says it's not just the quarterback. He said McDermott is challenging the team to play more freely and instinctively.
"I think there is something to that," Morse said this week. "We don't need to change everything just because we lost one game, but I think we need to look at what gets us stuck in certain situations. When you think too much on the football field you don't play as fast. And that doesn't mean you don't think, that means be confident in yourself. Be confident in the group of guys with you. Maybe sometimes less is more when it comes to communication part. Go out and just play football."
2. LOOKING FOR PROGRESS IN A "WORK IN PROGRESS"
Sunday will be Josh Allen's 21st NFL start, not yet a season-and-a-half worth of starts in the league. And he goes up against the Dolphins, the team he's played best against in his young career.
Allen has won two of his three starts against Miami, completing 60 percent of his passes, with seven touchdowns and two interceptions. He's also run it 22 times in three games against this opponent … with an average of almost 12 yards per rush and two touchdowns.
But Allen and the Bills are looking for more.
NFL Network host Kyle Brandt talked about Allen this week on One Bills Live.
"This is a second-year guy who's leading a team with a very good record, "Brandt said. "He's doing some excellent things. I'm already getting asked — is he the answer at quarterback? Yes, he's the answer at quarterback but there are still some questions."
Brandt says going into the season Allen's development was the primary focus for the Bills and it remains the focus. And the host of NFL Network's "Good Morning Football" is looking for the next step forward.
"The story of this season, the 2019 season for the Buffalo Bills, is gonna be either Josh Allen grew up, or he kinda stayed where he was," Brandt says. "I wanna push him in the water and see if he can swim—it's time."
3. TURNOVER TURNAROUND
Allen's biggest problem early this year was turnovers. Now, he's gone four consecutive games without an interception. He's thrown 130 passes in a row without a pick, the third-longest active streak in the league.
And overall, the Bills are protecting the ball much better since the beginning of October. They had 10 turnovers in September's four games, the most in the NFL. Since October 1st, five games, the Bills have only turned it over twice – tied for the fewest in the league.
4. IS MIAMI'S TANK OVER?
Two straight wins have Dolphins fans thinking the worst is over. They hope they've said goodbye to the "tank" and the push to enhance their draft status.
The draft sets up well for the 'Fins. They currently have a total of 11 draft picks in the 2020 draft — five in the first two rounds (three in the first, two in the second).
But four teams would pick ahead of Miami if the season ended today, thanks to their two straight wins.
5. DOES FITZ HAVE A PLACE IN NFL HISTORY?
The Bills get another crack at former Buffalo quarterback Ryan Fitzpatrick this week; the seventh time the team has faced him since he left the Bills six years ago. Buffalo is 3-3 against Fitzpatrick.
And the Bills are one of eight NFL teams that Fitzpatrick has started a game for — this will be his 16th start against a former team. Only four other quarterbacks have that many starts against their former employer.
In his 15th season, a week and a half away from his 37th birthday, how much more does Fitzpatrick have?
ESPN Insider Field Yates says Fitzpatrick already has made his name in the league, for his love of the sport.
"We always talk about how much Brett Favre loved the game," Yates told One Bills Live this week.
"And, not that Ryan Fitzpatrick has had Brett Favre's career at all," he continued, "but he reminds me of Favre in his pure enjoyment of football. Fitz seems to have a blast every time he is out there. Sometimes people may see it as carefree, I look at it as passionate. He's a warrior. He's incredibly tough. I think his teammates respect the heck out of him. I've really enjoyed the various chapters of Ryan Fitzpatrick's career."
6. BILLS ARE A SECOND HALF TEAM AGAINST MIAMI
The Bills have won two of their last three against Miami. But they seem to wait until the second half of those games to get going.
In three games the last two seasons, the Dolphins have outscored Buffalo by 13 points in the first half. In the second half — a different story. The Bills have outscored Miami by 44 points in the second half, taking the lead in all three of those games and winning the last two — both in Buffalo.
7. OLD VS. YOUNG
Sunday's game features one of the oldest rosters in the NFL against one of the youngest.
Thanks to veterans like Stephen Hauschka, Frank Gore, and Lorenzo Alexander, the Bills have the second-oldest roster in the league, with an average age of 27 years, 88 days. The Patriots roster is slightly older.
Miami has the third youngest roster in the league at 25 years, 340 days. And it will probably be in flux. The Dolphins have had 67 different players get in a game this season, the most in the NFL.
Scroll through to see the best photos from Buffalo's practice as they prepare for Week 11 against the Miami Dolphins.