Nathan Lyon’s rumoured fiancée Emma McCarthy bonds with his children at a cricket match in Sydney

They are said to be planning a wedding in September. 

And Nathan Lyon’s rumoured fiancée Emma McCarthy seemed very happy to take on the role of stepmum to the cricketer’s children on Sunday as they watched him win the Marsh One-Day Cup in Sydney.

Sporting a diamond ring on her wedding finger, the 30-year-old WAG was seen bonding with Nathan’s daughters Harper and Miller as they cheered him on from the sidelines.

Bonding: Nathan Lyon’s rumoured fiancée Emma McCarthy looked every inch the glamorous stepmum as she bonded with his children at the Marsh One-Day Cup in Sydney on Sunday 

After the game, Nathan, 33, strolled off the field and swept up his daughters in his arms, before leaning over the fence to give Emma a kiss. 

At one stage, Nathan and Emma shared a romantic embrace while his children, from his relationship with ex-partner Mel Waring, watched on.

Emma documented the family outing by taking photos of Nathan with his girls on the pitch.

Ring-a-ding-ding! Sporting a diamond ring on her wedding finger, the 30-year-old was seen bonding with Nathan's daughters Harper and Miller as they cheered him on from the sidelines

Joy: Emma beamed and clapped as she watched her beau's team win the match

Ring-a-ding-ding! Sporting a diamond ring on her wedding finger, the 30-year-old was seen bonding with Nathan’s daughters Harper and Miller as they cheered him on from the sidelines

Affectionate display: After the game, Nathan, 33, strolled off the field and swept up his daughters in his arms, before leaning over the fence to give Emma a kiss

Affectionate display: After the game, Nathan, 33, strolled off the field and swept up his daughters in his arms, before leaning over the fence to give Emma a kiss

Congratulations! Emma patted her man on the back after his team won the match by 201 runs

Congratulations! Emma patted her man on the back after his team won the match by 201 runs 

The stunning real estate agent dressed for comfort in a grey tracksuit and black blazer.

She completed her look with a pair of white sneakers and a blue baseball cap which covered her neatly curled blonde hair. 

For makeup, Emma highlighted her cheekbones with peach-toned blush and painted her pout with pink lipstick.

Bring it in: At one stage, Nathan and Emma shared a romantic embrace while his children, from his relationship with ex-partner Mel Waring, watched on

Bring it in: At one stage, Nathan and Emma shared a romantic embrace while his children, from his relationship with ex-partner Mel Waring, watched on

Chic: The stunning real estate agent dressed for comfort in a grey tracksuit and black blazer

Chic: The stunning real estate agent dressed for comfort in a grey tracksuit and black blazer

Shaded: She completed her look with a pair of white sneakers and a blue baseball cap which covered her neatly curled blonde mane

Shaded: She completed her look with a pair of white sneakers and a blue baseball cap which covered her neatly curled blonde mane

Primped: For makeup, Emma highlighted her cheekbones with peach-toned blush and painted her pout with pink lipstick

Primped: For makeup, Emma highlighted her cheekbones with peach-toned blush and painted her pout with pink lipstick

Emma, who has a habit of removing her ‘engagement ring’ when in public, proudly sported her diamond sparkler on this occasion, as well as a gold band on her other ring finger.

Neither Emma nor Nathan has confirmed they are engaged since photos of her wearing the ring emerged at the start of the year – but they have not denied the rumours either.

Emma – who alongside Nathan just snapped up a $3.8million townhouse in Sydney – debuted her diamond ring at the Gabba in Queensland on January 17, during Australia’s Test match against India.   

Say cheese! Emma documented the family outing by taking photos of Nathan with his girls on the pitch

Say cheese! Emma documented the family outing by taking photos of Nathan with his girls on the pitch

Hmm! Emma, who has a habit of removing her 'engagement ring' when in public, proudly sported her diamond sparkler on this occasion, as well as a gold band on her other ring finger

Hmm! Emma, who has a habit of removing her ‘engagement ring’ when in public, proudly sported her diamond sparkler on this occasion, as well as a gold band on her other ring finger

Anything to announce? Neither Emma nor Nathan has confirmed they are engaged since photos of her wearing the ring emerged at the start of the year - but they have not denied the rumours either

Anything to announce? Neither Emma nor Nathan has confirmed they are engaged since photos of her wearing the ring emerged at the start of the year – but they have not denied the rumours either

Wedding bells? According to the Daily Telegraph, the pair hope to tie the knot in front of friends and family in September this year

Wedding bells? According to the Daily Telegraph, the pair hope to tie the knot in front of friends and family in September this year

According to the Daily Telegraph, the pair hope to tie the knot in front of friends and family in September this year. 

Nathan debuted his relationship with the glamorous real estate agent in 2017, shortly after his messy split with ex-wife Mel Waring rocked the cricket community.

Emma and her batsman beau’s relationship began in scandalous circumstances, as they had been caught kissing in Perth in late 2017 while Nathan was still with his ex, Mel.

Controversial: Nathan debuted his relationship with the glamorous real estate agent in 2017, shortly after his messy split with ex-wife Mel Waring rocked the cricket community

Controversial: Nathan debuted his relationship with the glamorous real estate agent in 2017, shortly after his messy split with ex-wife Mel Waring rocked the cricket community

'I didn't ask for this': Mel famously detailed their heartbreaking split in a post on her blog, Life of Lyons, in March 2018

‘I didn’t ask for this’: Mel famously detailed their heartbreaking split in a post on her blog, Life of Lyons, in March 2018 

Mel famously detailed their heartbreaking split in a post on her blog, Life of Lyons, in March 2018. 

The 32-year-old single mother said her pain was ‘real and deep’ and recounted nights when she would lie in bed with her children and cry.

‘I didn’t ask for this, this wasn’t the way my life was supposed to be. He was my forever, he was my whole world,’ she wrote.

‘Until the very end I was 100 per cent devoted to our life and I loved every part of him and our world. This was like a bomb, it went off from behind.

‘I had to deal with [it] in a very public, humiliating and confronting way. A part of me died.’

Sadness: The 32-year-old single mother said her pain was 'real and deep' and recounted nights when she would lie in bed with her children and cry

Sadness: The 32-year-old single mother said her pain was ‘real and deep’ and recounted nights when she would lie in bed with her children and cry