There's nothing to suggest that he's not a worse player than De Gea.
By the time De Gea is 24 or 25, De Gea will be one of the top 3 GK's in the world, and Lindegaard will be one of the top 40.
In my mind, there's no doubt De Gea is already one of the top 5 or 6 GK's in the world.
Everyone here rates Cech massively, but he's making mistakes every 3rd or 4th game. Reina's shite. Only perhaps Hart and Cech are on the same level as De Gea in this league (No, Vorm and Krul aren't that great). Buffon's better most likely, in the Serie A (But again, there's no one else there), and obviously Saint Iker in Spain whose the best of the lot. Neuer has brilliant games and he has shit games; but his shit games are very very common. Ridiculously so.
1) Casillas
2) Buffon
3/4/5/6/7
could really be in any order imo. Cech, De Gea, Hart, Neuer < unordered but all are 3-7 in the world now. (Maybe Lloris, but he hasn't played in a massive league yet, so we'll wait and see).
I also know which one I'd rather have actually saving shots; De Gea's a fecking cat.