Chelsea boss Roberto di Matteo is excited to be working with their two new signings.
Marko Marin and Eden Hazard have arrived to bolster the European champs.
"Hazard's a wonderful player, for his young age he has achieved a lot, he has already been named Ligue 1 Player of the Year, but we shouldn't forget he is still young, but he will bring a lot of creativity to the side," said Di Matteo.
"Marin is another exciting player, he's an offensive attacking midfielder/winger, who can play in various positions which is helpful to the team and myself, and he is another one we will be looking to integrate into the side."