Manchester United boss Michael Carrick has been speaking to the media before Tuesday's Champions League game against Roma at Old Trafford (20:00 GMT).

Here are the key lines from his news conference:

• Carrick confirmed Luke Shaw will miss Tuesday's game and said "we will have to see day by day" on the fitness of Marcus Rashford.

• On Leny Yoro's fitness: "Leny had a tendon issue that comes and goes. He has been managing it and has been fantastic since he has come back - one of our best players. I have been delighted with his performances. He is on a really good pathway."

• Patrick Dorgu returned to training on Monday but will not feature against Roma: "Great to have him back with the group. He's worked ever so hard. We won't have him back for tomorrow but we'll see how he progresses through the week."

• Asked what makes him think he can turn United's fortunes around, Carrick said: "I know the players and I know what we're capable of as a team. We've shown it in spells - we showed it the other day [against Chelsea], but then the game went away from us. We have to act on it now and make a difference - and make a difference quite quickly. We have two great games this week. A great opportunity to attack the game and make it a good night."

• On questions over Lisandro Martinez's commitment after his red card at Stamford Bridge: "I have no concerns about his commitment. Things happen in football. Sometimes you make mistakes. The commitment is not an issue at all."

• On Martinez and Bruno Fernandes' current contract situations, with both set to expire in the summer of 2027: "When anything is finalised, we will let you know. Nothing to update at the moment."

• Asked if questions surrounding his future are affecting preparation, Carrick said: "No, not at all. You never know what's going to happen but that doesn't affect how we prepare for the game tomorrow. I can't wait for the game tomorrow and that is all I'm focused on. Whatever happens after that, happens after that."

• On whether he needs to change his mentality to stay positive when results are poor: "It's what I am and what I live for. A lot of people could do my job when you're winning a lot of football games. It's about finding solutions. I love being here and working with the players. The challenges and the problems just drive you on."

• Carrick was asked about the culture in the dressing room currently: "The dressing room is a good place. Perception is a funny thing. You can make things look different ways and think about all sorts of different things. The commitment of the players - to the club, to me, to each other - do not question at all. We need to play better, we can make better decisions, but the commitment is not a thing at all."

• On the club's chances of progressing in the Champions League: "We are looking for the win and [at] the bigger picture. You can get away with one or two defeats at this stage in terms of progressing, but you have to make amends. We are still in it."