The Daily Mail story, although looking a bit far-fetched, could have something in it, with both goalkeepers involved sharing the same agent - Jonathan Barnett's The Stellar Group.
The agent could be on double commission this summer if both keepers are transferred, with Hart's Manchester City career over and a permanent move back to England being sought.
City don't want to sell the 29-year-old England international to a direct Premier League title rival and will probably decide that Southampton aren't going to challenge in the next few years.
Everton are desperate to land a top-level keeper and would have no problem coming up with the expected £15million fee Saints would demand for Forster, who signed a new five-year deal last year.
Hart might also be keen to link up with Saints' goalkeeper coach Dave Watson, who he has worked with at international level.