First it was Philippe Coutinho, then it was Alexis Sanchez and now it's Pierre-Emerick Aubameyang.

The January transfer window's latest saga has already taken many twists so far, with not many people sure on whether Borussia Dortmund's star striker will make a sensational move to Arsenal to replace Manchester United-bound Sanchez.

The Gabonese striker - who has scored 13 Bundesliga goals this season - has reportedly agreed 'personal terms' and handed in a formal transfer request.

The move looks on, but Dortmund will surely want a replacement given their lack of depth in the striking department.

In fact, Aubameyang is the only natural centre-forward the club possess, so a new body will be their highest priority.

Olivier Giroud is a name that has been touted with that role, particularly as the French international admitted he was close to a move to the German club in the summer.

BUT, DORTMUND WANT SOMEONE ELSE

However, it appears Dortmund's eyes are focused on another striker plying his trade in London; Chelsea's Michy Batshuayi.

According to Bild, the club say they will need a deal for the Belgian striker in place before they sanction Aubameyang's €70m move to the Gunners.

Batshuayi has been linked with a potential loan move to Sevilla, while West Ham - who missed out on signing him before - have also expressed an interest.

Amazingly, the fate of Aubameyang's move to Arsenal could hinge on whether Chelsea complete a bizarre deal for Hammers striker Andy Carroll.

Should the Englishman make the switch to Stamford Bridge, Batshuayi would be allowed to leave and this should allow Arsenal to get their man. A strange scenario, we know.

WILL IT JUST BE AUBAMEYANG ARRIVING AT ARSENAL?

The Gabon forward is just one of three high-profile names being linked with a winter switch, with Henrikh Mkhitaryan and Bordeaux wonder-kid Malcom also featuring heavily in the rumour mills.

It's going to be a hectic few days where the Gunners are concerned, with a number of proposed deals likely to have more twists and turns.