If Salah was to leave, Liverpool would demand a huge fee and a top-quality replacement would be needed to be brought in.
Kylian Mbappe and Erling Haaland have been touted with big-money moves to the Premier League and Liverpool are seen as potential destinations for both players.
However, Barnes doubts whether either player would in fact be interested in a move to Liverpool.
“Who said that either Kylian Mbappe or Haaland would want to come to Liverpool?” Barnes added.
“This is the thing, just because one player goes, it doesn’t mean that one of these other superstars, in this case, Erling Haaland or Kylian Mbappe, are likely to sign as his replacement.