Porto make a living out of developing young players and selling them off for vast sums and Mangala looks as though he could fall into that category this summer.
The Frenchman has been making a name for himself in Portugal and has shown himself to be a very tough centre-back, though he also possesses good pace.
France have seen enough in Mangala to give him his international debut and he will be expected to travel to Brazil in the summer, which is likely only to make his price increase. Manchester City, Manchester United and Chelsea have all been mentioned as possible suitors.
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