Scoring goals will make fans forgive...
Reports have surfaced that Rooney will miss England's trip to Switzerland on Tuesday, but Clifford isn't bothered.
"The only thing Wayne Rooney has to worry about is his wife, whether she like all the others, is prepared to accept her husband's alleged infidelities," he said to reporters.
"Nobody in football gives a monkey's as long as he's winning on the pitch.
"Man United fans love him. He could be a mass murderer as long as he's scoring goals.
"[England boss Fabio] Capello can't demote him because that would mean he couldn't play and the team needs him.
"Rival fans will have something else to shout about, but so what?"
Golfing super star Tiger Woods was dropped from various sponsors after reports of his unfaithfulness surfaced, but Clifford is confident the same won't happen to Rooney.
"Will it stop people drinking Tiger Beer? No. Will it stop people buying Coca-Cola? No. Will it stop parents buying Nike for their children? No.
"It's almost expected that if you are a Premier League football star you're going to be playing away.
"It's become a pantomime. It's a farce. It's as if it doesn't really matter."
A spokesman for EA Sports, one of Rooney's sponsors, added: "This is a personal matter and we respect Wayne and his family's privacy.
"We have worked together for six years and Wayne continues to represent EA Sports. We will be making no further comment at this time."