The source was speaking on the condition of anonymity, and while they would not confirm how much either was investing as part of the consortium, they stated that both were investing as sport business investors.
Broughton’s consortium includes World Athletics President Sebastian Coe as well as Josh Harris and David Blitzer, who own sport teams including the National Basketball Association’s (NBA) Philadelphia 76ers, the source added.
A second source also confirmed Coe’s involvement with Broughton’s bid. Broughton is the former Liverpool chairman.
Freud Communications — Hamilton’s communications consultancy — confirmed the Formula One driver’s involvement in Broughton’s bid to CNN.
Serena Williams’ representatives were not immediately available for comment when contacted by CNN.
Broughton’s bid is one of three left in the race to purchase the club from current Chelsea owner Roman Abramovich.
This came after he declared he gave “stewardship” of Chelsea to trustees of the club’s charitable foundation.
Afterward, the European Union placed Abramovich on its list of sanctioned individuals, while the UK government sanctioned him as part of its efforts to “isolate” Russian President Vladimir Putin following Russia’s invasion of Ukraine.
Abramovich has always denied being linked to Putin and rejected claims that any of his activities merited government sanctions.