Southampton manager, Ralph Hasenhüttl has praised new signing, Mohammed Salisu, on his arrival at the club.The Ghanaian has joined the Saints on a four year deal, for £10.9 million from Spanish La Liga side, Real Valladolid.Ralph Hasenhüttl, believes the 21 year old will be an important piece in the Southampton side ahead of the coming season.“This is an important signing for us. Mohammed is a player who fits our profile well. ”He is young and has a great amount of potential, but he is also someone who has the qualities to come in and help the team as soon as he is up to speed with our way of playing.“I like what I have seen of him so far in his games with Valladolid. He is strong defensively, he is calm with the ball – something that is important in our team – and he has good speed too.“I think he will fit in well with us and that this will be a good place for him to develop his game further. We have some good centre-backs here and this will be another strong option for us.”Salisu, made 31 appearances for Real Valladolid last season, helping them finish with the La Liga’s 7th best defense.