I'm not fully convinced about Mallenco's appointment - it seems a bit too sentimental. He's been refereeing for a long time but I'm not sure that his international career has been especially distinguished. I think the only major tournament he's refereed at was the 2010 World Cup where I thought he was pretty poor (Germany V Serbia anyone?) - I don't think he did the Champions League final and I don't remember him doing too many CL semi-finals, and I also don't think he's done a CL knockout stage game this season.