public static Player getPartner(Player p) {
        if(support.containsKey(p)){
            Player partner = support.get(p);
            return partner;
        } else if(support.containsValue(p)){
            for(Player all : support.keySet()){
                if(support.get(all) == p){
                    return all;
                }
            }
        }
        return null;
    }