2 mins: The United back four is (from left to right) Yoro, Maguire, Heaven, Dalot. Good luck, lads.
Peep! Peep! Peep! Here we go!
The players hold a minute's silence for the Tenerife striker Jesús de Miguel died after a collision with the Andorra goalkeeper Jesús Owono during a match in the second division.
The players are heading out onto the pitch.
"We want Glazers out" comes the chant from the Stretford End.
Plenty of green and gold balloons in the away end as the fans make a point against the owners. The fans want the Glazers out and they are not particularly enamoured with Sir Jim. Two home losses this week will ramp up the toxicity at Old Trafford.
United have conceded in the opening two minutes in their past two Champions League games. Anything better than that would be a boost.
The players are cheered off after the warmup, which is a start.
Can United impress Barney Ronay ?
Time to get warm.

"A big challenge, it's what you expect. They've had a very good start to the season. We want to be in this competition to challenge ourselves against good teams. It's a big night for us.
"We have to pick a team, we've got good players. We've made a decision for tonight.
"We've got some really good midfielders with different strengths. We think it's a good time to put Kobbie back in with the attributes him and Baleba have."
Gorton-born Butt on TV and another one on the blog. A big day for east Manchester. Both quite critical of United at the moment.
"So now that Nuno is back on the market, does he get a ticket to the Manchester United new manager sweepstakes?"
Ashley Young suggests if Michael Carrick is forced out, then Jason Wilcox should go too.
Something I have suggested, too, and being on this blog is mainly about promoting your own work.
The great John Brewin wrote about how Manchester United have become unmanageable.
Busby and Ferguson built the club around themselves, possessing the charisma to convince others that theirs was the path to follow. Carrick, an insider, a club man, is falling victim to the same isolation as his predecessors in failure. Bruno Fernandes and Lisandro Martínez going off-piste in TV interviews to depth charge Carrick were actually following club tradition. With glamour comes decadence, the faded grandeur that has so often chased a United manager out the door.
Bit of fun among the team news … Martinez is dropped, allowing us all to guess how the United back four will start off. I feel Yoro deserves a go at centre-back but I will almost certainly be wrong.
Roma are giving a debut to third-choice goalkeeper Devis Vásquez, who is a 28-year-old who once had a loan at Sheffield Wednesday.
Lammens; Dalot, Yoro, Maguire, Heaven; Baleba, Mainoo; Diallo, Cunha, Fernandes; Mbeumo
Darlow, Heaton, Amass, De Ligt, Martinez, Mazraoui, Santos, Mount, T Fletcher, Tielemans, Lacey, Zirkzee
Vazquez; Mancini, Balerdi, Hermoso; Rensch, Cristante, De Roon, Wesley; Soule, Rodrigo Mora; Malen
De Marzi, Koulierakis, N'Dicka, Castro, Molina, Pisilli, Di Nunzio, Lulli, Ghilardi

Ayden Heaven was put up for the pre-match interview – don't worry he did not say anything on note. The Amazon pundits are perplexed that the young defender forced to face the cameras, with Ashley Young and Wayne Rooney wanting someone more senior to take responsibility.
Roma sit one place above Como in Serie A, which should worry United.
I went to see Michael Carrick yesterday for a bit of knockabout fun.
Is this the day Manchester United finally turn their season around and save Michael Carrick's job? Probably not. The manager is eagerly looking forward to this game despite not winning in nine, sitting 17th in the Premier League and coming into this clash with Roma off the back of two Champions League defeats. Life is not easy for Carrick because he has not fit left-back nor a decent striker available to him, so what can Big Sir Jim really expect?
Carrick, if we are being honest, has until the final whistle on Sunday - when Aston Villa are in town - to show he can lead United forward. Anything other than two wins this week will almost certainly seal his fate. There were promising signs against Chelsea but that soon unravelled.
At the very least, Carrick fronts up amid the misery. Those above him say absolutely nothing but must also fear for their futures after a desperate season thus far.