Haidara is a full back who joins from struggling Nancy, whilst Yanga-Mbiwa signs for 8 million euros.
Gouffran is a Bordeaux striker who will move for a fee in the region of £1.5 million, according to reports.
What is your opinion? Feel free to discuss the article under. You have to comment by using your Facebook profile. Be fair and have respect for other people and opinions!
Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.
Since Guus Hiddink arrived at the helm, Chelsea have improved considerably after a tricky start to the campaign.