Board Thread:General Discussion/@comment-10451197-20130605053202/@comment-7488132-20130618212552

Kubo said it before the arc started that not only grimmjow will appear, he may become a friend... The person that appeared in the chapter referenced above may have been grimmjow because 1) he referred to Ichigo as "Kurosaki" and 2) because of the remaining espada (besides tier harribel) he was the strongest one to split Quilge Opie into two...