As the Dana White-fronted Zuffa Boxing, backed by TKO and Saudi's Sela, makes its move to dethrone promotional giants Matchroom Boxing and Queensberry Promotions, James Emmett and David Cushnan consider the latest disruption in the fight game and Turki Alalshikh's role as chief string-puller.

They also reflect on their conversation with Uefa Marketing Director Guy-Laurent Epstein and European Football Clubs CEO Charlie Marshall, to unpack the new commercial programme being developed by the UC3 entity, a joint venture between Uefa and EFC - and the flexibility that is being built into the media rights and sponsorship sales packages being taken to market by agency partners Relevent and Two Circles.

And there's reaction to the Premier League confirmation it will launch a direct-to-consumer service in Singapore.

UC3 Co-Managing Directors Charlie Marshall and Guy-Laurent Epstein join Leaders Worth Knowing this week to shine some light on an organization that has been quietly pulling the strings of European football in the shadows for a little while.

It was set up in 2017 as a joint project between what was then the European Clubs Association (ECA) and Uefa to consult on the commercialization of European club competitions - principally the Champions League.

Last year, the project became an incorporated joint venture and has moved from a consulting role to a management capacity.

In the wake of the failed attempt at a European Super League breakaway, Uefa and the continent's most powerful clubs are now bound tightly together. UC3 exists to manage the commercialization of both the men's and women's club competitions; it has contracted Relevent Football Partners and Two Circles as agencies to enact that work in the market.

But how does it work? What's being done differently? And what does it mean for the future of European and world football. Marshall - who is also the CEO of the EFC - and Epstein - the Marketing Director of Uefa - are thrusting UC3 into the limelight.

Over 40,000 people volunteer at Parkrun events worldwide each week, with around 20,000 in the UK alone, which prompts James Emmett and David Cushnan to discuss sport’s reliance on volunteers to help run - and effectively help market - big events.

They reflect on this week’s podcast interview with Elizabeth Duggan, Parkrun’s CEO, and on the word of mouth-driven success story it’s become in the UK and further afield.

Elsewhere, as Gianni Infantino celebrates his 10th anniversary as Fifa President in Instagram style, it’s a timely moment to assess his front-foot approach to communications, in a week when IOC President Kirsty Coventry miscued during a press conference and a leading voice in women’s football, Victoire Cogevina Reynal, stepped away from her Mercury13 multi-club investment firm.

Elizabeth Duggan is approaching one year in the role of CEO at Parkrun, the volunteer-led running organisation that is held up as a blueprint for sports participation in the UK.

Duggan and her team do a lot with a little. What started 21 years ago as one man - Paul Sinton-Hewitt - looking for company on a 5km run around Bushy Park in London has blossomed into a global community of 'fun-runners'. Parkrun welcomed its 12 millionth registrant recently and now operates weekend events - 5km runs and walks, as well as 2km runs for children - in 23 countries around the world.

In the next few years, Duggan anticipates reaching 800,000 weekly runners taking part. In this conversation, she explains the principles that have driven the charity's success.

For more detail and analysis, subscribe for free to the weekly Leaders Worth Knowing newsletter at leadersinsport.com/newsletters/

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Leaders Week London is moving to Stamford Bridge, home of Chelsea FC. We’ll see you on Wednesday 7th and Thursday 8th October. For more details visit leadersinsport.com/leadersweek

The proposed merger between the ATP and WTA remains on the table, but as James Emmett and David Cushnan discuss, the time it's taking to finalise tells its own story.

On this week's show, there's reflections on conversations with Marina Storti, CEO of WTA Ventures, the commercial arm of the WTA, and Eno Polo, the new CEO at the ATP - and the challenges tennis faces with calendar congestion, balancing the demands of tournaments of various sizes, and player influence.

There's also time to discuss Casey Wasserman's decision to sell his stake in his agency, and the possible forms the sale could take, and as the NFL hires TMRW Sports to operate its planned new flag football league, how and where rights holders can create new IP, to make a greater footprint, expand geographically or fuel player development.

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Leaders Week London is moving to Stamford Bridge, home of Chelsea FC. We’ll see you on Wednesday 7th and Thursday 8th October. For more details visit leadersinsport.com/leadersweek.

WTA Ventures CEO Marina Storti joins the podcast to review a transformative year for women's tennis.

She takes us inside the process of landing Mercedes-Benz as a new headline partner, in what is being widely reported as the biggest sponsorship deal in the history of women's sport.

She details the gains the tour has made across its digital output and in its internal structure.

And she explains the rationale behind the new PIF WTA Maternity Fund programme, an industry-leading scheme that provides WTA players up to 12 months of paid leave.

This episode is part of a series exploring PIF’s growing sports sponsorship portfolio, detailing how it is striving to help solve societal and sporting challenges across its portfolio.

Listen to episode 1, with PIF Director and Head of Events and Sponsorship Alanoud Althonayan, here.

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Leaders Week London is moving to Stamford Bridge, home of Chelsea FC. We’ll see you on Wednesday 7th and Thursday 8th October. For more details visit leadersinsport.com/leadersweek.

ATP CEO Eno Polo joins the podcast to reflect on his first 100 days in charge of the men's tennis tour.

The Kenyan sets out his strategic priorities in what could end up being a transformative year for tennis, with a merger between the ATP and the WTA firmly on Polo's agenda.

He also outlines the support that the PIF brings to the tour's work with its players, particularly through its sponsorship of the ATP Rankings and through its investment in the Tennis IQ analytics platform.

This episode is part of a series exploring PIF’s growing sports sponsorship portfolio, detailing how it is striving to help solve societal and sporting challenges across its portfolio.

Listen to episode 1, with PIF Director and Head of Events and Sponsorship Alanoud Althonayan, here.

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Leaders Week London is moving to Stamford Bridge, home of Chelsea FC. We’ll see you on Wednesday 7th and Thursday 8th October. For more details visit leadersinsport.com/leadersweek

James Emmett and David Cushnan look ahead to a new Formula 1 season and another potentially seismic shift in the sport.

With significant gains in audience and commercial growth for the motorsport series in recent years, teams have felt the trickle down benefit, logging their own commercial gains.

With the biggest set of rule changes for over a decade coming into force this season, the playing field - theoretically - has been levelled. At this stage, championship contention is a realistic goal for almost all the teams. One that stands a particularly realistic chance of improvement is Aston Martin, whose commercial MD Jeff Slack is the featured guest on the interview show this week.

James and David reflect on Slack's comments, and take some time to look back on the Super Bowl as well as ahead to the future of the IOC's TOP sponsorship model.

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Leaders Week London is moving to Stamford Bridge, home of Chelsea FC. We’ll see you on Wednesday 7th and Thursday 8th October. For more details visit leadersinsport.com/leadersweek