This Morning viewers left divided over new host Sian Welby after she replaces Alison Hammond

This Morning viewers have been left divided after new host Sian Welby made her debut alongside Dermot O’Leary today.

Ever since Holly Willoughby announced she’d be leaving the long-running daytime show, fans have been keen to see who’d be filling her shoes.

We’ve seen a rotation of regular presenters stepping in over the past few months, including the likes of Dermot O’Leary, Alison Hammond - who recently announced she'd be taking a temporary break from the programme to take part in pantomime season - Josie Gibson, Rochelle Humes and Craig Doyle.

Now radio presenter Sian Welby has joined the This Morning family as a main presenter, having previously featured from time to time as a showbiz reporter.

Ahead of the big day, she said on Instagram: "I'm trying to be cool, calm and collected, but I'm hosting This Morning tomorrow! I can't believe this, I'm on the actual main show. I don't know who allowed this. Am I ready? Am I a liability? I'm not sure but thankfully I will be with Dermot who is a beacon of joy and an ultimate professional.

Instagram/@thismorning

"And he's going to take me under his wing, and I feel very safe. So, yes I will be with Dermot on Monday on This Morning tune in if you want to see the carnage that could happen because honestly at this moment I don't know what is going to happen, I'm just going to wing it."

Welby has been thrown into the deep end today (22 January), having been joined on the sofa by Austin Butler and Callum Turner as they discussed new Apple TV series Masters of the Air, followed by another A-list interview with Lift's Kevin Hart and Gugu Mbatha-Raw.

Thankfully, she seems to have taken it all in her stride, with many praising her efforts after a strong start - although not all viewers were left convinced just yet.

One wrote on X: "This woman is speaking over people… and not letting Dermot ask anything where is the training??? #thismorning."

Someone else said: "She’s really loud too!"

ITV

A third wrote: "Sian directly talking to Austin and ignoring Callum for 90% of the interview #thismorning."

However, others felt Welby did a great job, and were looking forward to seeing more of her.

One asked: "Who is this with Dermot? She's hilarious and I'm loving her. #ThisMorning."

Another addded: "She’s really good!! I like Sian as a presenter. She is GREAT! #thismorning."