Nottingham Forest have won seven successive games in all competitions, their longest run as a top-flight side since February 1989 under Brian Clough (run of 10).
Nottingham Forest 2-0 Luton: Sosa stars as hosts claim seventh straight winpublished at 17:32 11 January
17:32 11 January
Matthew Howarth BBC Sport journalist
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Nottingham Forest manager Nuno Espirito Santo made 11 changes to the team that started Monday's 3-0 Premier League victory at Wolves, giving some of his fringe players an opportunity to impress against Championship strugglers Luton.
That opportunity was grasped with both hands by Ramon Sosa, who made his first league start against Everton last month but was an unused substitute at Molineux earlier in the week.
The Paraguayan delivered a perfectly weighted cross for Ryan Yates to head home five minutes before the interval before getting on the scoresheet himself in the second half, converting Jota Silva's low cross after 68 minutes.
Sosa was replaced five minutes later but was given a warm ovation by the Forest supporters as he made his way off the field.
Whether he features against Premier League leaders Liverpool on Tuesday remains to be seen, but Saturday's display suggests the summer signing from Talleres could yet have a role to play in the top flight as Forest look to secure their place in Europe next season.
Sutton's predictions: Nottingham Forest v Lutonpublished at 10:45 11 January
10:45 11 January
BBC Sport football expert Chris Sutton has made his predictions for all 32 FA Cup third round games and given his verdict on who will make it into round four.
For this week's matches he is up against actor and musician Billy Bob Thornton, who is a Liverpool fan.
Sutton's prediction: 1-0
When these two teams met in the Premier League in March it was a relegation six-pointer, but they have gone in totally different directions since.
Forest just keep on winning and it is incredible that they are being talked about now as being in the title race.
Their manager, Nuno Espirito Santo, will definitely tinker with his team because they play Premier League leaders Liverpool on Tuesday, but they should still have enough to get through.
Morato's poignant tattoo in memory of his sister published at 10:03 11 January
10:03 11 January
Nick Mashiter BBC Sport football news reporter
Image source, Getty Images
Image caption,
Morato has a tattoo of his sister Rafaela to remember her
Nottingham Forest defender Morato has many tattoos but one means more than others.
The 23-year-old has picture of his sister inked on his right forearm to remember her after she died of cancer.
Rafaela passed away at just 15 in 2018 and the summer signing from Benfica carries her with him.
"I can't not think about her in moments like that," he said. "It was something nobody expected. I always talk about her with my family and will always remember her.
"The others don't really have any meaning in particular, they are just what I feel like getting at the time."
A year after losing his sister the defender struck up a friendship with a six-year-old in Sao Paulo call Larissa, who had brain cancer.
It led to the entire Sao Paulo Under-20 squad shaving their heads before the Copinha - the most famous youth tournament in the country - before winning it in 2019.
Morato asked Larissa to shave his head in the dressing room just before the final to strengthen their bond.
"She was a girl who had cancer in Brazil and she had followed all the matches of the youth team I was playing in at the time," he said, ahead of Saturday's FA Cup third round tie with Luton.
"That was in January 2019 and a year earlier, in August 2018, I had lost my sister to cancer so it was very special for me to see that and very emotional for me.
"At the end, as a team, we all came together and gave her a present. It is a present we as players will never forget and hope that she won't either.
"I still keep in touch with her."
When is the FA Cup fourth-round draw?published at 10:00 11 January
10:00 11 January
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The FA Cup third round is well under way, with Premier League sides Everton, Fulham and Aston Villa the clubs already booking their places in the fourth-round draw with wins on Thursday and Friday.
But for other sides hoping for a healthy cup run this season, when will the draw take place?
The draw will be live on BBC One and BBC iPlayer following the conclusion of the Arsenal v Manchester United tie, which kicks off at 15:00 GMT on Sunday.
It will include 32 teams - with all third-round matches this weekend settled on the day - and the resulting ties will be played over the weekend commencing Saturday, 8 February.