Include associated class objects (ApplicationUser and UserProfile) - ApplicationUserManager and OWIN

I have the following problem:

Within method GrantResourceOwnerCredentials in class OAuthProvider : OAuthAuthorizationServerProvider I'm filling in custom properties to be returned along with the Token. However, the associated class object UserProfile always comes null after I use FindAsync , as shown in the line below:

ApplicationUser user = await userManager.FindAsync(context.UserName, context.Password);

I can add via eager loading the associated object as follows:

await userManager.Users.Include("UserProfile").SingleOrDefaultAsync(u => u.UserName == context.UserName);
ApplicationUser user = await userManager.FindAsync(context.UserName, context.Password);

But I do not think it's correct because I check the username in the bank before checking that it is correct (because of the password).

I wanted to load this object after using FindAsync , but I do not know how. How can I do this using user ?