A spokesman for Nike said: "We have worked with Wayne for seven years and he continues to be a Nike athlete.
Related ArticlesReferendum: Should Rooney start against Swiss?Capello to make last-minute Rooney decisionJagielka wants permanent England placeMilner: England need RooneyCapello prasies Hart's focusSwaggering Hart is No 1"This is a private matter for Wayne and his family and we have no further comment to make at this time."
Nike also stood by golfer Tiger Woods as the world number one admitted a string of affairs which led to the breakdown of his marriage.
Coca-Cola declined to comment on their own business relationship with Rooney, with a spokesman for the company also saying: "This is a private matter for Wayne and his family."
The Manchester United forward trained with his fellow team-mates on Sunday morning at Arsenal's London Colney complex but is understood to have been subdued.
However, the Football Association have confirmed that Rooney will travel to Switzerland today ahead of England's Euro 2012 qualifier in Basle.