Did Rogue and Gajeel ever meet before the Tournament? In chapter 318, Gajeel mentions Rogue's real name, R(e)yos.  



So what's the deal between them? I thought Rogue only adored/feared Gajeel from the shadows (pun not intended). So how did he know his real name?
In episode 13 of Fairy Tail (2014) Gajeel implies that he was a mentor to Rogue. The fact that he knew the name Reyos proves that Gajeel knew about him while in Phantom Lord. Gajeel says that Rogue was his disciple. According to the Fairy Tail wiki, Rogue is also Gajeels sworn younger brother but the wiki doesn't say how it got this info about the brother.

From the wiki:


  At some point in time, Gajeel joined Phantom Lord. During his time in Phantom Lord, a young man named Rogue Cheney, known as Ryos, was Gajeel's sworn younger brother.