#2 Christian Pulisic
Christian Pulisic has been earmarked by Chelsea to fill in the boots of Hazard, should he depart to Real Madrid. The USA International has been in bright form for the exciting Dortmund team under Favre this season.
The American wonderkid has been a key cog in the Ruhr sides' team over the past couple of seasons and losing him will be a devastating blow to Borussia Dortmund's hopes of winning Bundesliga and The Champions League. Pulisic's current contract like Hazard's, is up in 2020, with Dortmund trying to extend his stay, offering him a new contract with massively improved terms.
Chelsea are currently leading the race, having already started negotiations with Dortmund, with the only stumbling block being the £70 million price tag. With Liverpool and Paris Saint-Germain also known admirers, it is very likely that we'll see the 20-year-old donning new colors come the second half of the season.