As those tweets from Rafael say, it is turning into a war between Chelsea and Manchester United over Rooney.
I don't believe for a second that Chelsea wanted to off-load their best player (Mata) to us for Rooney plus cash or a defender/DM who seemed to play well towards the end of last season (Luiz). It makes sense that after Mourinho publicly voiced his admiration for Wayne and I imagine other behind the scenes stuff has probably been going on with Stretford by Chelsea that United have thrown in a juicy story that two players, who not until a few months ago, were being linked with a move away from Chelsea, were added in.
I guess it is abit of covert payback although United say they only confirmed a bid. At this rate, they might prefer, if they have to sell Rooney to a PL club, to Arsenal than Chelsea.