Demichelis is only 6 ft the shortarse, he'll never make it in the Premier League. He can kiss his dreams of a League winners medal goodbye.
Koscielny too, he'll never hack it in England and can't head the ball to save his life never mind winning more than 50% of all aerial duels over the course of a season. Which would be more than a towering 6 ft 2 Mangala.
Carvalho only scraped 6 ft and we all know he was wank at Chelsea.
If you're 6ft 1 or under, you're only good in the air because you foul all the time, everybody knows that.