Ten-man Brazil and Chile drew 2-2 in a friendly at the Mineirao Stadium in Belo Horizonte.
The visitors took an early lead as midfielder Cesar Cortes' header was saved by Diego Cavalieri and Marc Gonzalez converted the rebound.
Brazil almost levelled in the 15th minute, but Jadson's long-range shot hit the crossbar, with Ronaldinho's rebound effort saved by Johnny Herrera, but they did get the equaliser when Rever headed home Neymar's corner.
During the second half, Alexandre Pato assisted Neymar, who only had to push the ball into the goal to fire Brazil ahead, but Eduardo Vargas fired his side level in the 64th minute with a superb long-range shot.
In injury time, Braulio Leal fouled Fernando Meneses and was sent off.
Worthington Group plc, which recently purchased a share of a company owned by the club's former chairman, Craig Whyte, posted the notice yesterday.
The allegations relate to the conduct of Green and commercial director Imran Ahmad, it said.
Worthington Group said it uncovered the alleged "information" during its purchase of a 26% stake in Whyte's company Law Financial Ltd.
The group claims Sevco 5088, which bought all of the business and assets of Rangers when the club entered administration last year, is a subsidiary of Law Financial.
Rangers released a statement on Wednesday which said Sevco 5088 is a defunct non-trading company, which is "not an active subsidiary of the Rangers International Football Club".
Green, also in a statement to the London Stock Exchange, announced last week that he was stepping down following controversy over alleged racist comments he made in a newspaper interview and speculation that he had closer links to Whyte than he had first admitted to.
Worthington Group's stock market announcement said: "During the course of the company's due diligence process, relating to its purchase of a stake in Law Financial, information has been discovered relating to the conduct of Mr Charles Green and Mr Imran Ahmad. This has today been reported to the Serious Fraud Office."
Rangers said earlier that "no legal claim has been received by Charles Green, Imran Ahmad or the group" from Whyte, Law Financial or Worthington Group.
No-one was immediately available to comment at the Serious Fraud Office.