Indeed but his is as injury prone as Thiago and also he demands very high wages. Barca and Bayern reportedly tried to sign him this summer but stepped back when they listend his demands.
No, Gundogan is not injury prone, it is just that he had an injury (with his back) that took a long time to recover. He had a slow start after he got back and was not very convincing initially, but now he is almost back to his prime/pre-injury level, I'd say. And he hasn't injured since.
With regard to his salary demand, no matter how high it is, it doesn't come close to what Pogba is reportedly demanding (12 m after tax). Plus, why should we get Pogba, a worse player for twice the money that would have bought 2 Gundogan's?
Gundogan is the better player. I don't care about Pogba's alleged high marketability. We are not in the business of selling jerseys. Let Real Madrid get him.