Former Arsenal forward Pierre-Emerick Aubameyang posted an ambiguous message on Instagram after Mikel Arteta 's side beat Chelsea on Wednesday.
The Gabon international, who joined Barcelona as a free agent in January, messaged his former Arsenal teammate Eddie Nketiah after the young striker bagged a brace against the Blues.
The North Londoners had lost their last three on the bounce and were in danger of seeing their top-four hopes slip away, but produced an impressive display across the capital.