'It's a pivotal moment that marks the rise of a black, young British head coach.'
"He is a top manager who knows football back to front, which is the crucial factor.
"But, as Chelsea's pioneering black footballer, it would be dishonest if I said this appointment doesn't move me."
These were the sentiments expressed by Paul Canoville, the man who made his groundbreaking first appearance for the Blues' first team off the bench back in April 1982.
This week, Chelsea hired RC Strasbourg manager Rosenior, aged 41, as their next manager following the departure of Enzo Maresca.
The French club is part of a multi-club BlueCo that also controls Chelsea.
There have been just 12 of African or Caribbean heritage managers – excluding individuals holding temporary caretaker roles – in England's top flight since it began thirty-four in the past.
"One thing that impresses me about Liam is that he grew up and played not far from here, he knows this community," continued Canoville.
"When youngsters observe someone like Liam in charge of the team they support, a person they can identify with, from a similar background, from a family that champions equality… that's powerful and shows them the path is there.
"So yes, this represents an enormous step for the club, for the capital, for all aspiring individual with big dreams.
"But right now? Let's back Liam, provide him with the necessary tools, and let the man do his work."
The iconic Dutchman Ruud Gullit became Chelsea manager back in the nineties and became the top flight's inaugural African heritage head coach.
Twelve years later, by 2008, Paul Ince was appointed as the first English black boss in the top flight after taking charge at Blackburn Rovers.
West Ham manager Nuno Espirito Santo currently stands as the only other current top flight gaffer from a minority ethnic background.
The shortage of managers of colour throughout English football is matched by a lack of diversity in the boardroom.
As per the BFP 2023's report, forty-three percent of Premier League players come from African or Caribbean heritage.
Yet, analysis by Kick It Out revealed just 3.2% of executive and leadership positions across 17 of 20 Premier League clubs are held by people from ethnically diverse backgrounds.
Regarding senior coaching positions, according to data provided by 11 clubs, the percentage stands at 2%.
Across all coaching roles – encompassing senior roles – from the same 11 clubs, the figure is 5%.
"He has undoubtedly made history in terms of him being announced as the Chelsea head coach, and as an organization, we hope to witness more such appointments," said the chief executive of Kick It Out Samuel Okafor.
"We know that there exists a wealth of talent present within black and underrepresented communities... they desire a chance to demonstrate their capabilities. It is imperative to persist in striving to dismantle those barriers down."
Furthermore, Rosenior will become one of only four full-time English managers currently in the Premier League – joining Sean Dyche, Eddie Howe and Scott Parker – a number that trails the continent's remaining major divisions in terms of homegrown managers.
16 of the 20 top-flight coaches in Italy are from Italy, Eleven in La Liga in Spain, Twelve in the Bundesliga are German while Ten in Ligue 1 are French.
Current Chelsea interim boss Calum McFarlane commented: "I have no doubt all young English coaches with a youth development pedigree are, to some degree no matter who you support, rooting for Liam.
"It's really inspirational to young English academy coaches to witness an individual get that job with his background and everyone hopes he does highly successful."
Rosenior is now Chelsea's second-ever African heritage coach following in the footsteps of Ruud Gullit.
Leroy Rosenior, Liam's father, played for clubs such as West London clubs, West Ham and Queens Park Rangers, with his managerial career culminating in a brief spell in charge of the third-tier club Brentford FC in 2006.
Two years ago, he was awarded a Member of the Order of the British Empire in that year's 2019 New Year Honours for services rendered to tackling discrimination within the sport and wider society.
When Rosenior Jr retired from playing he pursued a path in management. He started writing a column for a national newspaper, where in 2017 he acknowledged the lack of diversity of black coaches. He highlighted that ethnicity does not influence ability and said opportunities should be given based on qualification.
He also made a point he has often stated: that vast lack of diversity leads to misunderstandings of players with diverse ethnic and cultural backgrounds.
During an interview for a football podcast, Rosenior highlighted how his leading forward, Emmanuel Emegha, had been described as "difficult" and "passionate", noting that he understood the Dutch international with Nigerian parentage. Emegha is set to join him in moving from France to Chelsea in July.
In subsequent newspaper articles, he also confessed he was "ashamed" to hear an unnamed coach make a homophobic slur. He vowed support for the inclusion initiative and wrote an open letter to the former US President during his first US presidency, condemning his "blatant" racism.
He has subsequently made his name as a manager – first at Hull City, later at Strasbourg – and Wayne Rooney said this week he was "among the best coaches I've ever worked with" after their time together at Derby County.
Rosenior said goodbye at Strasbourg on Tuesday morning prior to putting pen to paper on a six‑and‑a‑half‑year deal with the Blues.
Chelsea boasted the Premier League's pioneering black manager in Gullit as well as the first black skipper in Paul Elliott.
Elliott later held several executive roles, among them the Football Association's diversity and inclusion board|