Sienna Miller steps out with steps out with handsome actor Oli Green

Sienna Miller has stepped out with actor Oli Green.

The actress, 40, appeared to confirm her new romance with the handsome star, who has previously dated Adowa Aboah and has had a series of acting roles.

Oli has recently entered the acting world with roles in U.S soap opera The Bold And The Beautiful as well as featuring in a Justin Theroux film, The Mosquito Coast.

New beau? It seems Sienna Miller has moved on with a new man, as she stepped out with a mystery suitor at New York Knicks game in New York on Wednesday night

The rising star has been modelling for much longer and was the face of a Burberry 2018 campaign and has also modelled for highstreet retailer GAP.

Oli has had formal training at the Lee Strasberg Theatre & Film Institute in New York.

While sources claimed Oli has previously been linked to Adowa, Oli most recently shared snaps with model Paige Reifler on his Instagram page. 

Model behaviour: The rising star has been modelling for much longer and was the face of a Burberry 2018 campaign (pictured walking for Burberry in Fall/Winter 2014)

Model behaviour: The rising star has been modelling for much longer and was the face of a Burberry 2018 campaign (pictured walking for Burberry in Fall/Winter 2014)

Cute: The actress, 40, couldn't wipe the smile off her face as she left Madison Square Gardens with her handsome companion, who rested an affectionate hand on her shoulder

Cute: The actress, 40, couldn’t wipe the smile off her face as she left Madison Square Gardens with her handsome companion, who rested an affectionate hand on her shoulder

Sienna split from her ex-fiancé, Lucas Zwirner, in September 2020 before being spotted looking cosy with her longtime pal Archie Keswick last summer.

Yet it seems Sienna has moved on with her new man, as she stepped out with Oli at New York Knicks game in New York on Wednesday night.

She couldn’t wipe the smile off her face as she left Madison Square Gardens with her handsome companion, who rested an affectionate hand on her shoulder. 

Model: The rising star has been modelling for much longer and was the face of a Burberry 2018 campaign and has also modelled for highstreet retailer GAP

Model: The rising star has been modelling for much longer and was the face of a Burberry 2018 campaign and has also modelled for highstreet retailer GAP

Ex-files: While sources claimed Oli has previously been linked to Adowa, Oli most recently shared snaps with model Paige Reifler on his Instagram page

Ex-files: While sources claimed Oli has previously been linked to Adowa, Oli most recently shared snaps with model Paige Reifler on his Instagram page

Former flame: The actress, 40, appeared to confirm her new romance with the handsome star, who has previously dated Adowa Aboah and has had a series of acting roles

Former flame: The actress, 40, appeared to confirm her new romance with the handsome star, who has previously dated Adowa Aboah and has had a series of acting roles

The mother of one looked typically chic in an oversized grey blazer and matching suit trousers, which she teamed with a pair of funky yellow boots.

She wore the suit over a basic white T-shirt and accessorised the look with a gold chain necklace and a pale blue handbag. 

Sienna wore her golden locks swept up into a high ponytail and added a soft touch of make-up to her pretty visage.

Glam: The mother of one looked typically chic in an oversized grey blazer and matching suit trousers, which she teamed with a pair of funky yellow boots

Glam: The mother of one looked typically chic in an oversized grey blazer and matching suit trousers, which she teamed with a pair of funky yellow boots

Meanwhile, Oli looked equally stylish in a blue jacket and cordoroy trousers, which he wore with a loose fitting shirt.

He had tousled dark hair and wore a grey scarf around his neck.

The new couple joined a star-studded crowd at the NBA game where the New York Knicks faced the Mephis Grizzlies.

Stepping out: She wore the suit over a basic white T-shirt and accessorised the look with a gold chain necklace and a pale blue handbag

Stepping out: She wore the suit over a basic white T-shirt and accessorised the look with a gold chain necklace and a pale blue handbag

Golden girl: Sienna wore her golden locks swept up into a high ponytail and added a soft touch of make-up to her pretty visage

Golden girl: Sienna wore her golden locks swept up into a high ponytail and added a soft touch of make-up to her pretty visage

Dapper: Meanwhile, Oli looked equally stylish in a blue jacket and cordoroy trousers, which he wore with a loose fitting shirt

Dapper: Meanwhile, Oli looked equally stylish in a blue jacket and cordoroy trousers, which he wore with a loose fitting shirt

Vivica A. Fox was in attendance and Spike Lee, 64, and Colin Kaepernick, 34, chatted courtside as they took in the game.

Jake Paul, 25, and girlfriend Julia Rose were dressed in flashy ensembles as they made their way to the game. 

Sienna was famously in a relationship with actor Tom Sturridge from 2011 to 2015. The friendly exes co-parent their nine-year-old daughter Marlowe.

She was most recently romantically linked to hotel tycoon Archie as they were seen on multiple outings together in the summer of last year.  

Handsome chap: He had tousled dark hair and wore a grey scarf around his neck

Handsome chap: He had tousled dark hair and wore a grey scarf around his neck

Glitzy: The new couple joined a star-studded crowd at the NBA game where the New York Knicks faced the Mephis Grizzlies

Glitzy: The new couple joined a star-studded crowd at the NBA game where the New York Knicks faced the Mephis Grizzlies

Baby daddy: Sienna was famously in a relationship with actor Tom Sturridge from 2011 to 2015. The friendly exes co-parent their nine-year-old daughter Marlowe

Baby daddy: Sienna was famously in a relationship with actor Tom Sturridge from 2011 to 2015. The friendly exes co-parent their nine-year-old daughter Marlowe

Sienna split from her third fiancé, Lucas, in September 2020.

Sienna and Lucas, 31, the son of art dealer David Zwirner, got engaged back in January 2020 after a year of dating.

It was reported at the time that it was the actress who broke it off with Zwirner, though no reason for the break-up was given.

Sienna was previously engaged to actors Jude Law, 49, in 2004 and Tom Sturridge, 36, in 2012.

Fling? She was most recently romantically linked to hotel tycoon Archie as they were seen on multiple outings together in the summer of last year

Fling? She was most recently romantically linked to hotel tycoon Archie as they were seen on multiple outings together in the summer of last year

It's over! Sienna split from her third fiancé, Lucas, in September 2020

It’s over! Sienna split from her third fiancé, Lucas, in September 2020

In a 2017 interview with Harper’s Bazaar, Sienna spoke about maintaining a friendship with her ex, saying of Tom, who is now dating actress Maya Hawke: ‘We still love each other.’

‘I think in a break-up somebody has to be a little bit cruel in order for it to be traditional, but it’s not been acrimonious in a way where you would choose to not be around that person.’

‘We don’t live together, as has been reported recently, but we do half the time,’ she added. ‘Everybody will stay over or we’ll all go on holiday and that’s because we genuinely want to be around each other.’

Split: Sienna Miller split from her third fiancé Lucas in September 2020  (pictured together in May 2019) - it was claimed that it was Sienna's decision to call it a day

Split: Sienna Miller split from her third fiancé Lucas in September 2020  (pictured together in May 2019) – it was claimed that it was Sienna’s decision to call it a day 

Ex: Sienna also dated actor Tom Sturridge from 2011 until 2015, becoming engaged in 2012 - the pair share eight-year-old daughter Marlowe Ottoline Layng (pictured together in 2013)

Ex: Sienna also dated actor Tom Sturridge from 2011 until 2015, becoming engaged in 2012 – the pair share eight-year-old daughter Marlowe Ottoline Layng (pictured together in 2013)

‘It’s great for our daughter that she has two parents who love each other and are friends. He’s definitely my best friend in the entire world.’

Sienna previously got engaged to her Alfie co-star Jude on Christmas day in 2004 – and they were in an on and off relationship until they split for good in 2011.

The pair had struggled with the revelation that Law had an affair with his children’s nanny, Daisy Wright, in July 2005, with Sienna calling off their engagement.

They later reconciled, but then in October 2005, Law learned that Miller had had a fling with his close friend, Daniel Craig, aka James Bond.

He reportedly threw her out of their north London home over the discovery.

Famous ex: Sienna was also engaged to her Alfie co-star Jude Law, who were in an on and off relationship until they split for good in 2011 (pictured in 2004)

Famous ex: Sienna was also engaged to her Alfie co-star Jude Law, who were in an on and off relationship until they split for good in 2011 (pictured in 2004)