"If Pietersen doesn't show genuine remorse over his part in a series of gauche actions and also show credible commitment to England over the next couple of years, then England's head coach won't be able to recommend further talks with Pietersen.
"Pietersen will have to listen, take the criticism on the chin and not offer excuses this time. He will be able to offer his side of the story in later meetings, but Saturday is about looking Flower straight between the eyes and eating the humblest pie of his career."
New Test captain Alastair Cook will be kept updated about the talks.
"It may be that Strauss will act as honest broker," said BBC Radio 5 live's Pat Murphy. "Although he has no desire to have a direct role, his stature will carry weight if his opinion is sought.
"I think Pietersen would have to show a total commitment to England until the next World Cup in 2015, then show his trust in Flower by allowing the coach to manage his workload while indulging his affection for the Indian Premier League to a certain extent."
England have time to solve the situation because they do not need to name their Test squad for the tour to India until early October.
If talks between Pietersen and Flower go well, it is expected that discussions will be scheduled between the player's advisors and Hugh Morris, the managing director of England cricket.
Morris stated earlier this week that he was keen for talks with Pietersen.
"We will be seeking discussions," he said. "They will be behind closed doors."
Cook, who succeeded Strauss as Test captain this week and is currently involved in the
one-day series against South Africa,
says he plans to get involved in discussions "in the coming weeks".
"If Pietersen comes back into line and the players are convinced of his sincerity, then most of them would surely play alongside him again," added 5 live's Murphy. "He would help them win matches."
Pietersen furore 'hastened' Strauss exit
Giles Clarke, chairman of the England and Wales Cricket Board, reiterated his desire for any further talks to be kept private.
"There has been too much in the public domain," said Clarke. "These matters need to be dealt with by the captain, head coach and national selector."
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