The Telegraph says Barcelona "are desperate to sign a striker" and their attention is on Aubameyang.
With Luis Suarez recovering from knee surgery and with no guarantee whether it will prove a success in the long-term, forward reinforcements are a priority for the Catalan club.
Valencia attacker Rodrigo is being touted as a possible alternative if Barca are "priced out of a late deal".
Arsenal now bracing themselves for a £50m approach from Barca for Aubameyang - but will try and block any move.
The striker has just 18 months left on his current deal at The Emirates, and there is no indication he is ready to sign a new one.