Arsenal are close to an agreement to sign Gabon striker Pierre-Emerick Aubameyang from Borussia Dortmund for about £60m.
But the transfer will not be sanctioned until Dortmund have a replacement lined up, with Arsenal’s Olivier Giroud among the reported options.
Arsenal have already had two bids for the 28-year-old rejected by Dortmund.
Aubameyang featured in Saturday’s 2-2 draw with Freiburg – his first start for the German club since 16 December.
Dortmund have said they are prepared to sell him if “certain parameters are fully met”.
Arsenal are looking for Aubameyang to replace Chile forward Alexis Sanchez, who joined Manchester United earlier this month in a swap deal with midfielder Henrikh Mkhitaryan.