Tata 's men are joint top of La Liga on 49 points .
Tata 's men face Atletico Madrid on Jan. 11 in a clash that gives either side the opportunity to take sole leadership of the Spanish top flight .
Tata 's men are joint top of La Liga on 49 points and face Atletico Madrid on Jan. 11 in a clash that gives either side the opportunity to take sole leadership of the Spanish top flight .